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# Search Results: "Wavelength"

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• 14:27

### Amplitude, Period, Frequency and Wavelength of Periodic Waves

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Amplitude, period, frequency and wavelength of periodic waves More free lessons at: http://www.khanacademy.org/video?v=tJW_a6JeXD8

• 09:44

### How to Measure Wavelength of Light with a Meter Stick - The Science of Light with Mr. G - Part 2

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**WARNING: This video contains math. Math has been known to cause great anxiety and even scare people. Please watch this video at your own risk. Or, just be brave and learn something new today! ~Craig Beals and Glenn Govertsen from the Mr. G Science Show

• 25:26

### Waves, Light and Sound - Physics 101 / AP Physics 1 Review with Dianna Cowern

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Lesson 17 (Waves, Light, and Sound) of Dianna's Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need a review of AP Physics concepts before the exam? This course is for you! Exercises in this video: 1.

• 04:59

### Visualizing Ultrasound with Schlieren Optics Part I

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Part 1 of 3. We use a schlieren optics system with a strobing light source to visualize ultrasonic waves emitted by a transducer driven at a frequency of 28 kHz.Images employing schlieren optics are very sensitive to changes in the density of air. Since s

• 06:32

### Seeing the Invisible: SLOW MOTION Schlieren Imaging

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This is what the world would look like if you could see invisible air currents, temperature gradients, and differences in pressure or composition of the air. Support Veritasium on Patreon: http://ve42.co/patreon Special thanks to Patreon Supporters: Tony

• 03:26

### Skylight: More Than Meets the Eye

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The sky is awash in light, but there’s much more beyond the visible that we cannot sense with our eyes. What do we see when we use telescopes to peer into the invisible? #astronomy #space #visiblelight #wavelength #infrared #MilkyWay #Andromeda #stars #CM

• 06:19

### What is the Heisenberg Uncertainty Principle: Explained in Simple Words

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Heisenbergs uncertainty principle says that if we know everything about where a particle is located, we know nothing about its momentum. Conversely, if we know everything about its momentum, then we know nothing about where the particle is located. In oth

• 04:50

### How We See Color

341 views / 1 likes - added

When you mix red and green, what do you get? White light is all of the colors, right? So, how do computer screens show you every wavelength of light? Or do they? instagram.com/thephysicsgirl facebook.com/thephysicsgirl twitter.com/thephysicsgirl physicsgi

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• 00:41

### Watch: This telescope could 'see' inside alien worlds for the first time

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Credit: Chuck Carter/Caltech/KISSA telescope array in France looks for radio signals whipped up by the magnetic dynamos of exoplanets. Just what could it mean for our understanding of far-off worlds?Another observatory, the Owens Valley Long Wavelength Ar

• 04:03

### Sound + Fire = Rubens' Tube

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Sound waves in a tube of gas create flames of different heights that dance to the music. A metal tube with holes in it is filled with gas. The gas is lit to create a row of tiny flames. A speaker at one end plays sound into the tube, which creates a stand

• 05:12

### How a Microwave Oven Works

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Bill details how a microwave oven heats food. He describes how the microwave vacuum tube, called a magnetron, generates radio frequencies that cause the water in food to rotate back and forth. He shows the standing wave inside the oven, and notes how you

• 05:58

### Light Waves, Visible And Invisible - Lucianne Walkowicz

356 views / 1 likes - added

View full lesson: http://ed.ted.com/lessons/light-waves-visible-and-invisible-lucianne-walkowicz Each kind of light has a unique wavelength, but human eyes can only perceive a tiny slice of the full spectrum -- the very narrow range from red to violet. Mi

• 05:50

### Seeing The Smallest Thing In The Universe

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Beyond molecules and atoms, how far down can we see below the wavelength of visible light? What is the smallest possible scale in the universe? Frog animation by Matt Burns Facebook: http://www.physicsgirl.org/facebook Twitter: http://www.physicsgirl.org/

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• 16:41

### CD-ROM Under the Microscope [2000x]

305 views / 0 likes - added

Today we look at a CD-ROM under a variety of magnifications up to an ‘empty’ 2000x. Here’s a link to the Applied Science video that I used as inspiration for my own foil separating technique: https://www.youtube.com/watch?v=GuCdsyCWmt8 Why use ‘empty’ 200

• 05:50

### Seeing the Smallest Thing in the Universe

138 views / 0 likes - added

Beyond molecules and atoms, how far down can we see below the wavelength of visible light? What is the smallest possible scale in the universe? Frog animation by Matt Burns Facebook: http://www.physicsgirl.org/facebook Twitter: http://www.physicsgirl.org/

• 10:34

### Light: Crash Course Astronomy #24

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In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color. Spectroscopy allows us to analyze those colors and determine an object’s temperature, dens

• 11:13

### The World in UV

326 views / 0 likes - added

UV cameras expose a hidden world and reveal the incompleteness of our perception The Physics Girl looks at sunscreen: https://youtu.be/GRD-xvlhGMc How to make sunscreen from scratch: https://youtu.be/lMXAY5F28L0 In summary, ultraviolet light interacts dif

• 06:04

### Is Energy Always Conserved?

363 views / 0 likes - added

This episode is brought to you by Squarespace: http://www.squarespace.com/physicsgirl PBSDS Survey: https://www.surveymonkey.com/r/pbsds2016 When light passes through the universe and is redshifted by the expansion of space itself, how is energy conserved

• 04:34

### Ultrasonic Levitation

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Acoustic levitation meets Schlieren optics: By reflecting a sound wave back onto itself, one can secure a standing wave if the distance between the source of the sound and the reflector is equal to an integral number of half wavelengths. In this demonstra

• 15:16

### Planck's Constant and The Origin of Quantum Mechanics | Space Time | PBS Digital Studios

262 views / 0 likes - added

To check out any of the lectures available from Great Courses Plus go to http://ow.ly/K9mK301cRdj and get ready to learn about everything from cooking to calculus. Previous episode on Quantum Tunneling and the de Broglie Wavelength: https://www.youtube.co

• 09:07

### The Absurdity of Detecting Gravitational Waves

270 views / 0 likes - added

A head-vaporizing laser with a perfect wavelength detecting sub-proton space-time ripples. Huge thanks to Prof Rana Adhikari and LIGO: http://ligo.org Here's how he felt when he learned about the first ever detection: https://youtu.be/ViMnGgn87dg Thanks t

• 14:17

### This Invisible Light Shows Us What Our Eyes Can't See

440 views / 0 likes - added

Infrared light is all around us even though we cannot see it. Find out how this invisible radiation impacts our everyday lives. Everything Scientists Could Learn By Looking At Your Skull - https://youtu.be/PtG9uB5C7Sk Sign Up For The Seeker Newsletter Her

• 02:40

### Why Can Blu-rays Hold More Than DVDs?

286 views / 1 likes - added

Blu-rays can hold about ten times more than DVDs because Blu-ray players use special blue lasers to read them. But it took a while for scientists to figure out how to make those lasers work. Hosted by: Michael Aranda ---------- Dooblydoo thanks go to the

• 05:13

### What the coronavirus looks like up close

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Seeing the virus up close helps us understand it.Support Vox by joining the Video Lab at http://vox.com/join or making a one-time contribution: http://vox.com/contributeThe images of SARS-CoV-2, the novel coronavirus that first appeared in humans in late

• 02:28

### Scientists Just Used a Tractor Beam to Levitate the Largest Object Yet

225 views / 0 likes - added

The world’s most powerful tractor beam just lifted a 2 centimeter ball, but could it make levitating humans a reality? One Shot Could Provide All the Vaccines You'll Ever Need - https://youtu.be/qQ1VKYX4Vl0 Thumbnail image courtesy of University of Bristo

• 09:57

### This thing is -270C and is EVERYWHERE

124 views / 0 likes - added

Download the PBS Video App: https://www.pbs.org/pbs-video-app/The universe is microwaving itself. A mystery signal discovered in the 1960s led to a Nobel prize. In this video, Dianna explores one of the most mysterious discoveries in physics - a constant

• 04:27

### How Close Are We To An Invisibility Cloak?

599 views / 3 likes - added

Invisibility cloaks seem to be science fiction, but science is making them a reality. Don't miss Telescope premiering Feb. 20 at 9/8c on Discovery! How Brain Waves Can Control Physical Objects ►►►►http://bit.ly/1XvLX1M Sign Up For The TestTube Newsletter

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• 03:20

### Could Magnonics Spark the Extinction of Electronics?

231 views / 0 likes - added

Faster, more efficient electronics may be on the horizon thanks to a creative use of magnetism... as soon as we can stop blowing stuff up. Meet "magnonics." Photonic Chips Will Change Computing Forever... If We Can Get Them Right - https://youtu.be/rUMx1R

• 04:16

### Jellyfish Lasers Are Revolutionizing Quantum Physics

387 views / 1 likes - added

How are scientists using jellyfish to create super-advanced polariton lasers? And how do lasers even work in the first place? What Makes Some Animals Glow? - https://youtu.be/Bv6VkasWmrU Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Thank

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• 04:03

### This Massive Wall of Galaxies Is Lurking Beyond the Milky Way

212 views / 2 likes - added

Cosmographers recently revealed a massive wall of galaxies lurking shockingly close by. But why was it hidden from our view for so long? Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/ElementsPlaylist Visit our shop

• 02:50

### Why Do Some People Sneeze In Sunlight?

638 views / 1 likes - added

You walk outside on a sunny day and BAM! A sneezing fit hits you. But why? Join Cristen as she explains the photic sneeze reflex. Learn more at HowStuffWorks.com: http://entertainment.howstuffworks.com/arts/circus-arts/human-blockhead2.htm Share on Facebo

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• 03:01

### Why Are Wine Bottles Usually Green?

544 views / 0 likes - added

Most wine bottles are green. Is it because they're pretty? Or do they protect the booze juice inside somehow? Learn more at HowStuffWorks.com: http://science.howstuffworks.com/innovation/edible-innovations/winemaking.htm Share on Facebook: Share on Twitte

• 05:50

### What The Color Of A Star Reveals About Its Composition

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People have noticed this range of colors in the stars throughout history and its actually a pretty good indicator of a stars temperature, chemical composition and life stage. In this episode, we explore why stars sometimes change color and how to spot an

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