Mathematical modeling | Parabolic partial differential equations | Nonlinear systems

Autowave reverberator

In the theory of autowave phenomena an autowave reverberator is an autowave vortex in a two-dimensional active medium. A reverberator appears a result of a rupture in the front of a plane autowave. Such a rupture may occur, for example, via collision of the front with a nonexcitable obstacle. In this case, depending on the conditions, either of two phenomena may arise: a spiral wave, which rotates around the obstacle, or an autowave reverberator which rotates with its tip free. (Wikipedia).

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Transformers - Part 4 - Encoder remarks

In this video we highlight a few properties of the transformer encoder. The video is part of a series of videos on the transformer architecture, https://arxiv.org/abs/1706.03762. You can find the complete series and a longer motivation here: https://www.youtube.com/playlist?list=PLDw5cZw

From playlist A series of videos on the transformer

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RC Phase Shift Oscillator Circuit Using a NPN Transistor

This electronics video tutorial explains how to design the RC Phase Shift Oscillator Circuit using a single npn transistor. This circuit generates a sine wave at the ouput. The frequency of the oscillations depends on the resistor-capacitor network that is coupled to the base of the tran

From playlist Electronic Circuits

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DC to DC Converter operation

In this video I demonstrate the operation of a DC to DC converter and explain how it differs to a normal voltage regulator. Other equipment used during the demo: bench power supply, Fluke 115, Brymen TBM251 digital multimeter.

From playlist General Electronics

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Full Wave Rectifiers

This electronics video tutorial provides a basic introduction into full wave rectifiers which converts a sine wave AC signal into a pulsating DC signal using two diodes, a load resistor, and a center tap transformer. Hantek Handheld Oscilloscope: https://amzn.to/3B5iu9d Center Tapped T

From playlist Electronic Circuits

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Transformers - Part 3 - Encoder

In this video, we present the encoder layer in the transformer. Important components of this presentation is that we introduce multi-head attention, positional encodings and the architecture of the encoder blocks that appear inside the encoder. The video is part of a series of videos on t

From playlist A series of videos on the transformer

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The Masses of Quasars - B. Peterson

Fifty Years of Quasars: A Symposium in Honor of Maarten Schmidt Caltech, Pasadena, CA, USA - Sept. 9-10, 2013 More info: http://www.astro.caltech.edu/q50 Links to talks with video of speaker: http://www.astro.caltech.edu/q50/Program.html Fifty years ago, the discovery of quasars transform

From playlist Fifty Years of Quasars - September, 9-10, 2013

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Tesla Bifilar coil and high frequency experiments!

In this video i show Tesla bifilar coil which turn on fluorescent 240V and how bifilar can used for loudspeaker. Enjoy!!!

From playlist ELECTROMAGNETISM

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21. Sound localization 2: Superior olivary complex and IC

MIT 9.04 Sensory Systems, Fall 2013 View the complete course: http://ocw.mit.edu/9-04F13 Instructor: Chris Brown This video continues to discuss sound localization, including neural processing in the lateral superior olive and inferior colliculus. It also covers the auditory pathways in B

From playlist MIT 9.04 Sensory Systems, Fall 2013

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Rocking Out With Convolutions | Two Minute Papers #73

A lot of university students tend to have a lot of problems understanding convolutions. Today, we're going to talk about both many cool useful applications of convolutions and there will be a bit of intuition on how the computation is done. Among other cool applications, it turns out we ca

From playlist Two Minute Papers

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How architecture helped music evolve - David Byrne

View full lesson: http://ed.ted.com/lessons/how-architecture-helped-music-evolve-david-byrne As his career grew, David Byrne went from playing CBGB to Carnegie Hall. He asks: Does the venue make the music? From outdoor drumming to Wagnerian operas to arena rock, he explores how context ha

From playlist Behind the Curtain

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Torque Converter, How does it work?

Most of us enjoy the smooth and effortless feeling of driving in an automatic transmission car. The driving is effortless because you don’t need to worry about gear changing and you don’t have a clutch pedal to operate. In an automatic transmission car the work, of the clutch pedal, is aut

From playlist Automobile Engineering

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Full Wave Bridge Rectifiers

This electronics video tutorial provides a basic introduction into full wave bridge rectifiers which are used to convert an AC sine wave signal into a pulsating DC signal. The electronic components used in this type of rectifier circuits are a transformer, 4 diodes, and a load resistor.

From playlist Electronic Circuits

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MythBusters - Homemade Hi-Def Speakers

New episodes return Wednesday, Oct. 7th @ 9pm E/P on Discovery! Check out exclusive footage straight from the MythBusters' own video cameras: http://dsc.discovery.com/videos/mythbusters-raw/?smid=YTDSC-YTD-PLP Can you really make hi-def speakers from paper plates and foil like the YT vi

From playlist MythBusters Classics

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Major Evidence For Another Structure Inside Earth's Core

Get a Wonderful Person Tee: https://teespring.com/stores/whatdamath More cool designs are on Amazon: https://amzn.to/3wDGy2i Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about a confirmati

From playlist Amazing Planet Earth

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DC to DC Converter - A cheap option

This is a reponse to a viewer who highlighted a cheap option for DC to DC converters. 12 volt car lighter USB charger Equipment used during the demo: bench power supply, Fluke 115, Brymen TBM251 digital multimeter.

From playlist General Electronics

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Lecture 7.1: Josh McDermott - Introduction to Audition, Part 1

MIT RES.9-003 Brains, Minds and Machines Summer Course, Summer 2015 View the complete course: https://ocw.mit.edu/RES-9-003SU15 Instructor: Josh McDermott The study of sound textures and high level goals of auditory processing. Anatomy and structure of the auditory system, frequency tunin

From playlist MIT RES.9-003 Brains, Minds and Machines Summer Course, Summer 2015

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Lecture 7D : Why it is difficult to train an RNN

Neural Networks for Machine Learning by Geoffrey Hinton [Coursera 2013] Lecture 7D : Why it is difficult to train an RNN

From playlist Neural Networks for Machine Learning by Professor Geoffrey Hinton [Complete]

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AWESOME Electromagnetic force oscillation!!!

In this video i show electromagnetic force oscillation on a ruler. Also i demonstrate the standing wave on a ruler!

From playlist ELECTROMAGNETISM

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Lecture 7.4 — Why it is difficult to train an RNN? [Neural Networks for Machine Learning]

Lecture from the course Neural Networks for Machine Learning, as taught by Geoffrey Hinton (University of Toronto) on Coursera in 2012. Link to the course (login required): https://class.coursera.org/neuralnets-2012-001

From playlist [Coursera] Neural Networks for Machine Learning — Geoffrey Hinton

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Bifurcation memory | Curl (mathematics) | Differential equation | Excitable medium | Autowave | Vortex | Spiral wave | FitzHugh–Nagumo model