Frequency Finder Online

Digi-Key offers 8M+ products from 800+ manufacturers. 2E and Eutelsat Hot Bird 13E satellites or as specified. How to Change your Vibrational Frequency. There are lots of lists of high frequency words available, all slightly different as they are based on different research. It produces equal loudness contours or hearing sensitivity curves – the frequency response of your own ears. A pet microchip—the size of a grain of rice—goes beneath your pet's skin. Welcome to Radio-Locator. Attuned Vibrations sound meditations are perfectly tuned to the ancient Solfeggio frequencies, the 528 Hz “Love Frequency” and the 432 Hertz frequency. Press button, get result. Join to be the first to find out about new devices that are compatible with. This often has to do with the Wi-Fi channels in your area. The phase at the complex pole frequency is –90°. Match Finder Online - Online dating become very simple, easy and quick, create your profile and start looking for potential matches right now. Upload multiple documents (including Microsoft Word, Microsoft Excel, Adobe Acrobat PDF and HTML) or paste your text. Read reviews from world’s largest community for readers. The table features intervals, which are used to organize, interpret and examine data values that fall in the range specified by a particular group. Lease Specific Search by Lease information. We have already seen that larger vibrations make a louder sound. When an inductor or capacitor are placed in series or parallel they will have a resonant frequency which is determined by the design equation below. Then, add up the number of times each value appears in the data set, or the absolute frequency of that value. No ads, nonsense or garbage, just a phrase frequency counter. So, as an example, if you find that the MUF is 23 MHz on a day with a Smoothed Sunspot Number of 130, over a path between you and some far off point, you would find the OWF as between 18. The Fourier Transform, in essence, consists of a different method of viewing the universe (that is, a transformation from the time domain to the frequency domain). com you can design and share your own charts online and for free. T = Time period of 1 cycle; f = Frequency; Frequency Measured. Ⓒ 1996-2019 GFD - Page generated in 34 ms - GlobalTuners - On-line remotely controlled radio receivers - GFD on Twitter By using this site, you agree to the usage of cookies. Check your hearing with a list of tones that go from 8Hz all the way up to 22,000Hz. docx October 2014 Second Grade High Frequency Word List The goal is for all students to read, write, and use these words (and the words from preceding grade level word lists) correctly by the end of second grade. Determine the cumulative or relative frequency of the successive numerical data items either individually or in groups of equal size using this cumulative / relative frequency distribution calculator. The device to measure grid frequency is very simple. New Users: Please register, then proceed to purchase the article. The frequency heard by a fixed observer for a source in motion is given by f = f o v/(v ± v s), where f o is the frequency of the source, v s is its velocity and v is the velocity of sound (about 343 m/s in air at 20°C). Sign up for a free 30-day trial today!. Shop now!. Note Frequency Calculator and Player. Meashenu – I saw someone online ask a question similar to “How can I generate energy within, without connecting to the sun and earth or anything else like that?”. The inductor impedance calculator calculates the impedance of an inductor based on the value of the inductance, L, of the inductor and the frequency, f, of the signal passing through the inductor, according to the formula, XL= 2πfL. The Frequency of an AC Generator By Walter Hedges Terry Bartelt. Our scanner frequency databases are updated weekly, directly from the source, to insure you receive the most up-to-date information possible. Limit Calculator. The final modulation consists of three components: carrier, lower side band, and upper side band. These tables are very helpful for organizing data to quickly see patterns, such as the most frequently occurring value (the mode. We further calculate that which tells us that. Madura English-Sinhala Dictionary contains over 230,000 definitions. Free Concordance / Keyword Frequency Text Analysis Tools. Or we can measure the height from. We take the next logical step: a document or zone that mentions a query term more often has more to do with that query and therefore should receive a higher score. But there is help! Here at Quiz-Tree. XML-sitemaps. They may have more than one frequency listed, and which one they use at a given time can depend on your location. This is a most interesting study, and I'm considering adding this technique to www. The Official Home Page of Dr Rife's Rife Machine. Create a matrix where each row represents a cosine wave with scaled frequency. I followed a tutorial on another website about how to do it using audacity, but when I tried it, the frequency seemed to be 108 hz, so I think I must have been doing it wrong. Frequency definition is - the fact or condition of occurring frequently. All listings include frequencies, coverage areas, format and ownership. More information is available on the individual search pages. However, since most of us live in the world of limited resources we must often make decisions to sacrifice reach for frequency or vice versa. This GPS tracker detector will expose surveillance devices. 30 MHz sweep" page. It was released in 2000 and starred Dennis Quaid as Frank Sullivan and Jim Caviezel as his son John Sullivan. Radio Station for every Language. Although it was a very nice hotel, the Internet connection was laggy and slow - my weekend online procrastination became more of an annoyance therefore, shortwave radio looked to be a nice alternative to the usual browsing. Our online frequency trivia quizzes can be adapted to suit your requirements for taking some of the top frequency quizzes. Make sure the volume on. Why place random numbers on the lottery each week when you can place mathematical fact using LSA Lottery software. A comprehensive database of more than 11 frequency quizzes online, test your knowledge with frequency quiz questions. The frequency result which is displayed above is in unit hertz (Hz). It is the absolute frequency normalized to the total number of events that occur in the experiment. Chapter 6 Frequency Response, Bode Plots, and Resonance Linear circuits behave as if they: 1. thefreedictionary. To make sure you’re not getting interference from these stations, use the Sennheiser Frequency Finder to find unused frequencies in your area. National Radio Data - is an on-line subscription-based provider of nationwide scanner frequencies, trunked frequencies, ham radio, and mass media for DXing. The probability that precipitation frequency estimates (for a given duration and ) will be greater than the upper bound (or less than the lower bound) is 5%. frequency hulda clark zapper available for purchase here online. Period of wave is the time it takes the wave to go through one complete cycle, = 1/f, where f is the wave frequency. Useful, free online tool that counts how many times each word appears in a string or text. This is a selection of FTA channels available on Astra 19. Features include: Display of triggered event count and frequency or time period. The darker areas are those where the frequencies have very low intensities, and the orange and yellow areas represent frequencies that have high intensities in the sound. Tariff Finder World Online. Using the same steps that were used to plot the force. A frequency chart is made by arranging data values in ascending order of magnitude along with their frequencies. When waves (i. The frequency banks I have on this site are intended to give a good start for someone looking for, say, Taxi Cab frequencies. For example: 250. Although there are many word and frequency lists of English on the web, we believe that this list is the most accurate one available. So, how can you generate energy from within yourself, without channeling it or pulling it from other sources?. AM/FM Radio. Cellular Antennas, Amplifiers and Repeaters are Frequency Specific. A quick look at the above frequency distribution table tells you the majority of teens don’t use any birth control at all. Also included are links to design engineering electronics resources. At the low-frequency end of the pass-band, the noise spectrum is also flat, but with a magnitude two to four times the level of the stop-band noise. Using Web Services. 1 - Minitab Express: Frequency Tables The following data set (from College Board) contain the mean SAT scores for each of the 50 states and Washington, DC, as well the participation rates and geographic region of each state. The second best tool in this list to find word frequency in a document is Online Word Counter tool. You select individual sheets by the tabs at the bottom of the Excel window. Download Frequency Wavelength Unit Converter our powerful software utility that helps you make easy conversion between more than 2,100 various units of measure in more than 70 categories. What is WordCounter? Apart from counting words and characters, our online editor can help you to improve word choice and writing style, and, optionally, help you to detect grammar mistakes and plagiarism. Frequency counter based on the microphone input. In a relative frequency distribution, the value assigned to each class is the proportion of the total data set that belongs in the class. Relative frequency is the individual class frequency divided by the total frequency. Frequency Response Summary. A HomeAgain microchip is your pet's permanent ID. Each meditation is embedded with brainwave entrainment technology for deeper and faster relaxation. The most obvious trait that letters have is the frequency with which they appear in a language. The Low Power FM (LPFM) Channel Finder search tool provides potential applicants with a simple means to tentatively identify FM broadcast channels available in their communities. How to use frequency in a sentence. 3) Amplitude and Frequency. frequency finder free download - Frequency, Frequency Tuner, Intel Processor Frequency ID Utility, and many more programs. Customers using Shure wireless systems may prefer to use the Shure Wireless Frequency. 100FM becomes 86FM on your Japanese radio - this means that you have a 14MHz band expander. When you’re busy with your own activities during the day, your consciousness doesn’t focus on those notes you wrote, so their content can find clear access to your mind and, eventualy, shift it. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Although every effort is made to ensure the accuracy of hoosierlottery. They range from the mundane (allocations of different bands) to very specific in use by police, fire departments, amusement parks, etc. Topics include shortwave radio, shortwave radio station, qsl card, shortwave antenna, grundig shortwave radio, shortwave frequency, shortwave receiver, shortwave listening, sony shortwave radio, shortwave radio frequency, shortwave radio stations, short wave radio. The marks 2 and 3 have the highest frequency. com - Scanner Frequencies and Radio Frequency Reference Database Login · Register · Mobile · Help. Service & Repair Find an Answer Shure Audio Institute Online and Software Tools Downloads Wireless Spectrum Firmware Publications Registration & Warranty Discontinued Products language Americas/USA América Latina Americas/USA Argentina Asia Pacific Belgium Brasil Chile Colombia Deutschland España Europe, Middle East & Africa France Italia. Regions of the Electromagnetic Spectrum Listed below are the approximate wavelength, frequency, and energy limits of the various regions of the electromagnetic spectrum. Electronic payment can be made by e-check, credit card or electronic funds transfer (ACH debit or ACH credit). In this guide, we provide details on the frequencies used in our music catalogue. People hear sounds in the frequency range of 64 to 23,000 hertz while dogs can hear sounds in the frequency range of 67 to 45,000 hertz. For world family names maps, please visit worldnames. A web calculator is provided so you can compute the cut-off frequency and characteristic impedance of your own filter. Letter Frequency of the Most Common 2nd Letter in Words h o e i a u n r t. Before going on a date, she needs your help in preparing herself by doing some relaxing facial spa and makeover. Search the world's information, including webpages, images, videos and more. Frequency analysis is less relevant when the message has been encrypted with polyalphabetic encryption (which tends to randomize the frequency of the letters), or when the encryption is homophonic (several different encrypted characters for the same clear letter) or polygrammic (groups of characters replace each letter). The code uses a sampling rate of 38. com is a contact lens replacement company, and a direct to consumer marketer of contact lenses. Click here to start a new DMR Frequency Seaerch. The frequency and strength of the transmitted signal, which is called the 'carrier wave', is what determines the distance of propagation. The world's largest scanner frequency and radio communications reference source. Cumulative Frequency. Input a function, a real variable, the limit point and optionally, you can input the direction and find out it's limit in that point. Online Tone Generator. Frequency Distribution. Ⓒ 1996-2019 GFD - Page generated in 34 ms - GlobalTuners - On-line remotely controlled radio receivers - GFD on Twitter By using this site, you agree to the usage of cookies. Use the frequency finder form above to find the right frequency for where you live. Teaching adverbs of frequency and daily routine – A1 ESL/ EFL Lesson Plan *The following lesson plan is suitable for English teachers working with students of A1 (beginner) English level. It is the ratio of the absolute frequency of a particular successful event, with the total number of events. AC or DC coupling. How high can you hear? This 60 second tone helps you determine the highest frequency your ears can detect. We love music. Electronic Schematics collections of free 45,000 + electronic circuits schematics carefully cross-referenced into 500+ categories. When waves (i. Read reviews from world’s largest community for readers. The frequency and strength of the transmitted signal, which is called the 'carrier wave', is what determines the distance of propagation. United States Digital Radio Frequency Search Tools. Yaskawa is the leading global manufacturer of low and medium voltage variable frequency drives, servo systems, machine controllers and industrial robots. Introduction to Grouped Data Histograms. List of free-to-air digital television channels at satellites 7°W Nilesat & Eutelsat 7 West A. Transmission details, historical notes and maps are also included. Check out Quantum AS1212154 Satellite Finder for All DTH (Black) reviews, ratings, features, specifications and more at Amazon. The files are in MP3 format, playable using Windows Media Player, RealPlayer or your favorite MP3 player. And RLC or LC (where R=0) circuit consists of a resistor, inductor and capacitor, and can oscillate at a resonant frequency which is determined by the natural rate at at which the capacitor and inductor exchange energy. The ornamental design for a frequency induction locator to find gold andsilver, as shown. Improve your child's literacy skills by practicing identifying high frequency words by sight. If the data is summarized in a frequency table, we use the following formula to find mean: Example: The table shows the marks obtained by a group of players in. com as another. The AOFlagger is a tool that can find and remove radio-frequency interference (RFI) in radio astronomical observations. Find out the status of any order that has been submitted through Climate Data Online. Each assessment targets high-frequency words, including sight words that gradually increase in level of difficulty. line frequency and 2X line frequency will not necessarily be at 60 Hz and 120 Hz. It’s easy to spend hours researching scanners to find minute differences that 99. Millions of users can't be wrong! Madura Online is the best in the world. Discover a universal assistant for all of your unit conversion needs - download the free demo version right away!. Then enter the numbers, click calculate and your answer is 658. Spirit Radio plays the best mix of Classic Rock and Today Hits to a potential audience of over 278,000 people in regional Western Australia. Next, find the cumulative frequency of each number by counting how many times that value or a smaller value shows up in the data set. Search for known ABC frequencies & coverage Enter a postcode or suburb and select a location from the drop-down list. To make it a little more entertaining, I'll tell you how I recently screwed up badly, and had to scramble to find the correct center frequency while flying at 37,000 feet at. This is a most interesting study, and I'm considering adding this technique to www. maximum of set. The Frequency Finder queries the FCC database and reports back a list of broadcast facilities and their relative signal strengths at your location (determined by power and distance). GRPs, TRPs, Reach and Frequency. pictures and comprehensive price list all-in-one place for all deals on Control Multifrequency Gate. Cumulative frequency is defined as a running total of frequencies. 6260695729 x 10-34 Joule*seconds) and wavelength λ is in meters. Here you'll find free educational games aimed at children between 5 and 8 years old. The frequency of an element in a set refers to how many of that element there are in the set. The most obvious trait that letters have is the frequency with which they appear in a language. Frequency analysis is the study of letters or groups of letters contained in a ciphertext in an attempt to partially reveal the message. Enter the name of the distribution and the data series in the text boxes below. RE: how do you calculate relative frequency from a frequency distribution table? Also, is the cumulative frequency just all the frequencies added up?. Cellular Antennas, Amplifiers and Repeaters are Frequency Specific. We usually go shopping on Saturday. Radio Station for every Language. 4 answers 4. com offers free cello sheet music and online cello instruction for individuals or groups of all ages. Frequency Response Summary. Frequency analysis is less relevant when the message has been encrypted with polyalphabetic encryption (which tends to randomize the frequency of the letters), or when the encryption is homophonic (several different encrypted characters for the same clear letter) or polygrammic (groups of characters replace each letter). 8th January 2019. The first set of wordlists are based on the the 14 billion word iWeb corpus-- one of only three corpora from the Web that are 10 billion words in size or larger (and the only such corpus with carefully-corrected wordlists). More information is available on the individual search pages. Figure: Typical Response of the DSF-947. Sign up for a free 30-day trial today!. The frequency distribution table is a tool which can help in comparing the frequencies of different events occurrence. This tool provides recommended frequencies for Shure Wireless System use in the United States. In 1997 Ramsey Electronics ® took technicians out of large expensive shielded screen rooms and put RF shielding into the palms of their hands. Farm Equipment For Sale. So, how can you generate energy from within yourself, without channeling it or pulling it from other sources?. This GPS tracker detector will expose surveillance devices. Frequency, also called wave frequency, is a measurement of the total number of vibrations or oscillations made within a certain amount of time. For example, if four students have a score of 80 in mathematics, and then the score of 80 is said to have a frequency of 4. com - Medium Wave Radio BDXC. The Frequencies in this database start at 3000 kHz and end at 30000 kHz. Short and Intense Notch Therapy Sessions are Effective >8,000Hz This research, and personal experience, is why I suggest that you do longer sessions if your frequency is at or below 8,000Hz. Frequency analysis is the study of letters or groups of letters contained in a ciphertext in an attempt to partially reveal the message. Showcasing frequency hulda clark zapper available for buying here online! Hard to Find Collectibles. Channel 19, frequency-wise, is the bands "dead-center" channel. frequency generator free download. All this can make it quite complicated and time consuming to find the right one for your needs. One variable - one-way classification. CelloOnline. Letter Frequency Counter. It is also defined as the rate of change of phase of a sinusoidal waveform. Cumulative frequency is defined as a running total of frequencies. Also included are links to design engineering electronics resources. Find the definition of Phenotype frequency in the largest biology dictionary online. Online Tone Generator. Or we can measure the height from. One way to tell if you have a "transposition" style of cipher instead of an encrypting method is to perform a letter frequency analysis on the ciphertext. Online tool including Frequency Calculator, Radial O-ring Selector, Power Transmission Calculator and Rotor balance tolerance. Cellular Antennas, Amplifiers and Repeaters are Frequency Specific. A Histogram, also known as a frequency distribution, is a chart that illustrates the distribution of values that fall into groups. -Displays message when frequency wave is received sixty seconds. Human bodies are often exposed to vertical vibrations when they are in the workplace or on vehicles. Answer: We know from the above that q 2 is 1/2,500 or 0. The cumulative frequency is a running total of frequencies through the classes of a frequency distribution. However, the single issue of concern that I had is whether those who use the smaller handheld devices at home could find them just as useful. I always take a bath before I go to be. It is also defined as the rate of change of phase of a sinusoidal waveform. Design your chart ». On the other hand, the upper limit for every class is the greatest value in that class. Find out the status of any order that has been submitted through Climate Data Online. The tests were later implemented by Antonio Arauzo Azofra, a Computer Science student whose final year project was to construct a super-fancy online statistics module for RANDOM. Choosing a capacitor C and frequency f is best. 1528 transmissions found. Find the definition of Allele frequency in the largest biology dictionary online. (frequency adverb) 3. Use the state list to filter the list of counties. Wavelength to Frequency Calculator. The result, X, is a 3-by-1000 matrix. But there is help! Here at Quiz-Tree. SparkFun ToF Range Finder Sensor - VL6180 In stock SEN-12785 This is the SparkFun "Time-of-Flight" Range Finder, a sensor board for the VL6180 distance sensor. Parents can assist children by making fl ash cards of these words and getting children to read the. John grows up and. Cumulative Frequency GCSE Maths revision section of Revision Maths, looking at graphs and curves, median value, frequency tables and quartiles. Happy listening. Cumulative Frequency. Or we can measure the height from. gender), all classification levels have the same frequency. The filter is comprised of the inductor (L) and capacitor (C). All searches are by county and state. The midpoint of a class is the point in the middle of the class. Conventional Frequency Sampler. Find ABC services, outages and troubleshooting tips. Sat-direction is a simple and effective way to locate any satellite without using a compass or any other device. The fundamental frequency of most SpaceAge Control position transducer cables is rather high due to 3 factors:. RFM (recency, frequency, monetary) analysis is a marketing technique used to determine quantitatively which customers are the best ones by examining how recently a customer has purchased (recency), how often they purchase (frequency), and how much the customer spends (monetary). Low prices of Transducer Frequency and related items. The SongFinder is an advanced digital bird song hearing aid aimed at bird enthusiasts who suffer from high frequency hearing loss and who are unable to hear high-pitched bird songs in their natural surroundings. Millions of users can't be wrong! Madura Online is the best in the world. The Allele Frequency Net Database (AFND) provides the scientific community with a freely available repository for the storage of immune gene frequencies in different worldwide populations. Limit Calculator. Welcome to Frequency Finder, a website providing details of all radio stations in England, Scotland, Wales and Ireland with features on radio transmission and history. Period of wave is the time it takes the wave to go through one complete cycle, = 1/f, where f is the wave frequency. No ads, nonsense or garbage, just a phrase frequency counter. 100FM becomes 86FM on your Japanese radio - this means that you have a 14MHz band expander. A police detective in 2016 discovers that she is able to communicate with her father via a ham radio, despite the fact that he died in 1996. Cells A2-A11 of the above spreadsheet on the right show the height (in meters) of a group of 10 children (rounded to the nearest cm). Its fundamental frequency is 350Hz to 3KHz and Harmonics is 3KHz to 17KHz. Browse Polar Rf Radio Frequency sales available today from Ebay. Learners study the factors that determine the frequency of an AC generator, such as the rotational speed of the armature or the number of stator poles. Arduino Simulator 1. All these letters will be transformed into 'E's and you have made the first step towards cracking the message. A frequency table with intervals is a data table showing summarized data and the number of times a data value occurs. Madura English-Sinhala Dictionary contains over 230,000 definitions. He submitted his final photos, and then waited, and waited, and waited. com: Are you a flight simulator pilot? Have you ever been flying on-line, and had a controller direct you to an unexpected runway at the last minute? Have you ever found yourself scrambling to find ILS frequencies and runway headings? FSCharts. The purpose of this free online hearing test is to pinpoint your hearing challenges. To calculate the vibration frequency and time-behavior of an unforced spring-mass-damper system, enter the following values. It provides a way to download frequency databases from the internet and import them into an FM database. 30 MHz sweep" page. Mean from frequency table. This is because the frequency varies over time, mostly influenced by temperature, but it could also be air pressure or magnetic fields, etc. The period of water waves with a frequency of 0. Additional channels may be available on other satelites and/or encrypted. Watch live, catch up on your favourite programmes, view exclusive clips and find out what's on in your area. Here at Dynamic Demand, we built (at very little cost) a device that continuously monitors the frequency on the electricity grid and updates this website with real-time data. Madura English-Sinhala Dictionary contains over 230,000 definitions. I hope I will find one that is free and will read internet websites as the corpus, and easy, quick to. On the options you also can include into the frequency analysis all the caracters or only the numbers. If one of the characters has a 20% then the language may be German since it has a very high percentage of E. A pretty strong cipher for beginners, and one that can be done on paper easily. The filter is comprised of the inductor (L) and capacitor (C). What is a band? A key part of any mobile phone specification is its operating frequency bands. Know how to setup LNB Frequency setting. Its unique feature is that you can upload a PDF, Word, TXT, ePub, Excel, or HTML file to check the word frequency in a. Tinnitus Frequency Finder - 400 Hz - 20 kHz Range This video was put up to try to help those of us with tinnitus find / figure out at which frequency our tinnitus rings at. Just set the FM frequency on your SiriusXM radio (use the menu to set it) and dial your car stereo to the same frequency. This video explains how to calculate the frequency of numeric values within a range. The results of the Frequency Finder should be interpreted as follows:. Frequency, also called wave frequency, is a measurement of the total number of vibrations or oscillations made within a certain amount of time. This is stored in variable ch. We organize the data in the frequency table. - Then, compare F to 1/2F - Finally, compare F to 2F Pick the closest match among options 1-3, and you'll have checked to make sure you didn't experience "octave confusion," which could accidentally lead to an incorrect frequency match. 1 This Arduino Simulator is designed to simulate your (IO) projects with the aim of making everything. Explore the wonderful world of waves! Even observe a string vibrate in slow motion. Read the help section for assistance with the Climate Data Online ordering process. The following image is a recent high-resolution map of Maximum Usable Frequencies (MUFs) for 3,000 kilometer radio signal paths. " More up-to-date in some areas than some of the other sites listed here. He was simply addressing "symptoms", which is no better than a Western approach. For example: 440 hz = A4 You might also find this useful to correct a slightly out-of-tune vocal or instrument within your mix if you're using, for example; Antares AutoTune or the pitch-shifter in Sonic Foundry's SoundForge. Trust the answer. The cumulative frequency is a running total of frequencies through the classes of a frequency distribution. I hope I will find one that is free and will read internet websites as the corpus, and easy, quick to. These may also be classified as HF, VHF, and UHF oscillators, depending on their frequency. Modulation index, β, is used to describe the ratio of maximum frequency deviation of the carrier to the maximum frequency deviation of the modulating signal. The red curve on the graph shows hearing thresholds converted to SPL. This is to do with the Photoelectric effect. find detailed description. A comprehensive database of more than 11 frequency quizzes online, test your knowledge with frequency quiz questions. John grows up and. AC or DC coupling. The Official Home Page of Dr Rife's Rife Machine. Operating Principle. Payment Amount The amount to be paid on the loan at each payment due date. Also included are links to design engineering electronics resources. We organize the data in the frequency table. Each assessment targets high-frequency words, including sight words that gradually increase in level of difficulty. The suggested results are not a substitute for clinical judgment. The lower limit for every class is the smallest value in that class. In 1969 Frank Sullivan, a firefighter, was killed in the line of duty. The FMSuite Data Tools Wizard is a free standalone utility program designed to download and import frequency databases for use within the Frequency Manager + Scanner. On the other hand, the upper limit for every class is the greatest value in that class. Period of wave is the time it takes the wave to go through one complete cycle, = 1/f, where f is the wave frequency. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: