Paul Andersen answers over 500 questions from 39 states and 20 countries. Good luck on the AP Biology exam.

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Desde disfrutar del calor de un fuego hasta hornear un pastel, nos beneficiamos de cambios químicos de forma regular. Este programa explica numerosos ejemplos de cambios químicos. Conceptos y terminología: cambio físico, cambio...

What have we learned from exploring Earth's harshest locations? That pretty everywhere we look for life, we find it. From smoking hot hydrothermal vents to icy deserts, up in clouds and inside rocks, extremophiles have found a way to...

Yes, fire can burn without oxygen. While oxygen is an important oxidizing agent for combustion, it is not the only one. There are alternative oxidizers such as chlorine, fluorine, and bromine that can also support burning. Furthermore,...

Bose Einstein condensate is considered the fifth state of matter - its obtained when gas particles are cooled to almost absolute zero temperature. To generate the Bose-Einstein condensate, the first step is to obtain a cloud of gas; a...

Is there life on Venus? Quantum astrochemist Clara Sousa-Silva makes the case for a new way to seek and possibly discover habitable planets -- and shares her research into a poisonous, smelly molecule that might signal life beyond Earth.

The Jumblies | CLASSIC | Edward Lear - Kids' Poems and Stories With Michael Rosen

A story-poem by Edward...

Journey to the centre of the Earth.
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Physical processes -The Earth and beyond - The
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Scientists believe that the solar system took billions of years to develop! This video gives an overview of solar system basics - its beginnings, gravity, planets orbits.

The heliocentric model of Copernicus was extremely controversial in its time, but it wasn't the end of the story. Johannes Kepler used the data of his boss, Tycho Brahe, to further corroborate it, but also show that the planets do not...

In this session, we will address part two of the challenge. In this video, we will look at how many projects were completed in the first year.
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This clip is from the chapter "RDD Crash Course" of the series "Apache Spark 3...

What happens when you don't sleep? And why do we need to do it anyways? Hank explains the science of sleep: the cause, the benefits, and who holds the record for going without it!

In this video, I will share my top live streaming tips and tricks to get your more engagement on your live streams.

Something heavy seems to be causing Uranus and Neptune to move in a different orbit than what we can currently account for with the celestial objects we know of. Is there a 9th planet? Does planet 9 exist? Is planet X...

In this video, we will learn about Array and ArrayList - section introduction with a challenge.
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This clip is from the chapter "Arrays and ArrayLists" of the series "Java Programming for Complete Beginners - Java 16".In this...

Scheduled to launch in the mid-2020s, the Wide Field Infrared Survey Telescope (WFIRST) will function as Hubble’s wide-eyed cousin. While just as sensitive as Hubble's cameras, WFIRST's 300-megapixel Wide Field...

The Hubble Space Telescope is more well known for its picturesque views of nebulae and galaxies, but it's also useful for studying our own planets, including Mars.



Hubble imaged Mars on May 12, 2016 - ten days...

Tom Fletcher unveils 'The Explorer and the Bear' song from Paddington The MusicalCredit: Tom Fletcher/Paddington The Musical

A conversation with Lynn Rothschild, astrobiologist and synthetic biologist in the Earth Science Division at NASA’s Ames Research Center in Silicon Valley.

Our solar system is full of incredible objects, and some of them are manmade! Beyond the probes we've sent to observe other planets, we've put countless objects up into orbit to perform a variety of functions. What are these, where are...

After a quiet half a century since the last Apollo mission landed on the moon, Associate Professor Alan Duffy takes us inside the new space race. What are the challenges for living for a long duration in space and how to mitigate health...

Over the past three decades, astronomers have discovered thousands of planets beyond our solar system. But while some of them might be the right size and mass to be some kind of Earth 2.0, we don't know if any of them is truly...

Now that we know planets are common in our galaxy, how would we tell if one holds life? Sure, it will take incredibly powerful telescopes and ambitious new space missions, but what are we looking for? What are we listening for? How do we...

Life on Earth requires three things: liquid water, a source of energy within a habitable range from the sun and organic carbon-based material. But life is surprisingly resilient, and organisms called extremophiles can be found in hostile...