Amazing 4K Video of Colorful Liquid in Space

Amazing 4K Video of Colorful Liquid in Space

Ever wondered what water in space would look like in 6K?

Astronauts aboard the International Space Station dissolved an effervescent tablet into a floating ball of water and captured the result in 4K video.

These higher resolution images and higher frame rate videos can reveal more information when used on science investigations, giving researchers a valuable new tool aboard the space station.

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How To Detect A Secret Nuclear Test

How To Detect A Secret Nuclear Test

How can we know that North Korea and Iran (to name a few) are exploding nuclear weapons if no inspectors have ever been granted access to suspected nuclear sites in these countries?

How can we passively detect a secret detonation of a nuclear warhead? What are the telltale signs of a nuclear detonation?

Watch MinutePhysics’s explanation of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) and how its International Monitoring System works.

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Why Street Lights Are Yellow?

Why Street Lights Are Yellow?

Why is street lights are yellow and why it is neccesary?

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How Much Do You Know About  Electromagnetic Spectrum?

How Much Do You Know About Electromagnetic Spectrum?

You actually know more about it than you may think! The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes– visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation.

Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays.

The different types of radiation in the EM spectrum, in order from lowest energy to highest:

Radio

Yes, this is the same kind of energy that radio stations emit into the air for your boom box to capture and turn into your favorite Mozart, Madonna, or Justin Timberlake tunes. But radio waves are also emitted by other things … such as stars and gases in space. You may not be able to dance to what these objects emit, but you can use it to learn what they are made of.

Microwaves

They will cook your popcorn in just a few minutes! Microwaves in space are used by astronomers to learn about the structure of nearby galaxies, and our own Milky Way!

Infrared

Our skin emits infrared light, which is why we can be seen in the dark by someone using night vision goggles. In space, IR light maps the dust between stars.

Visible

Yes, this is the part that our eyes see. Visible radiation is emitted by everything from fireflies to light bulbs to stars … also by fast-moving particles hitting other particles.

Ultraviolet

We know that the Sun is a source of ultraviolet (or UV) radiation, because it is the UV rays that cause our skin to burn! Stars and other “hot” objects in space emit UV radiation.

X-rays

Your doctor uses them to look at your bones and your dentist to look at your teeth. Hot gases in the Universe also emit X-rays .

Gamma-rays

Radioactive materials (some natural and others made by man in things like nuclear power plants) can emit gamma-rays. Big particle accelerators that scientists use to help them understand what matter is made of can sometimes generate gamma-rays. But the biggest gamma-ray generator of all is the Universe! It makes gamma radiation in all kinds of ways.

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Teen Makes Great Video Explaining The Theory of Relativity

Teen Makes Great Video Explaining The Theory of Relativity

Explaining Einstein’s relativity theory doesn’t have to be boring, as proved by young Ryan Chester in this video.

110 years ago Albert Einstein published a theory that revolutionized the way we think about the universe. In this video I’ll show you how to prove its two postulates using easy-to-understand real-world experiments, and how even the simplest understanding of quantum mechanics can be used to wrap your mind around why time must slow down the faster an object moves.

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simple explanation of Gravitational Waves

simple explanation of Gravitational Waves

Have Gravitational Waves finally been detected by LIGO?

Physicists Umberto Cannella and Daniel Whiteson explain what they are and why they’ll cause a big ripple in our understanding of the Universe.

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