How long can you survive without SLEEP, WATER, FOOD and AIR? How HOT or COLD can you go? What is the MAXIMUM HUMAN AGE LIMIT?

Just how unique are your fingerprints? Appendix’s purpose? Why aren’t we totally human? How do we really taste things?

You wake and suddenly you're no longer on the plane! But what are your chances and how do you increase your odds of surviving a fall from the cruising altitude of an airliner?

We investigate how the internet could be taken down, the consequences of an Internet Apocalypse, and if it could all be done by a single person.

A question we all ask ourselves every time a black cloud appears and starts rain down on you. So once and for all we investigated this daily quandary to find out the answer!

Join us as we explore the physics behind 'What goes up must come down!

What is the deepest dive a human can survive? It’s far deeper than you could even imagine! Join us on this journey into the depths of human survival.

While snakes might be at the top of most people’s concerns when it comes to venomous creatures it’s actually something quite different that tops the bill of Most Venomous!

A nuclear blast is about to detonate! Where do you hide?!<br/>
Indiana Jones opted for a lead lined fridge and survived, but just how safe would it really be?

Find out the best way to survive a 150 meter elevator fall, and at the same time learn about gravitational acceleration and understand Newton’s Laws. Your monthly dose of hypothetical physics scenarios is here, and today we’re dropping...

Can a dominant side of your brain dictate your personality. LOGICAL vs CREATIVE? The Theory goes that if you are more creative and artistic then you are ‘right-brained’ and if you’re more methodical and better with numbers then you are...

In this video, the teacher explains how to evaluate an algebraic expression using substitution. The example given involves substituting the value of B with 4 and then simplifying the expression using order of operations.



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Alexa teaches you all the French numbers from one to 100... Perfect for French beginners who want to learn basic French!

This video shows how to recapture the seemingly missing feature of Google Hangout on Air and how to take advantage of and understand the features.

Hola. In this lesson we'll be covering how we use Double Object Pronouns (Direct and Indirect Object Pronouns) in Spanish. Don't forget to check out some of my other videos on this series to practice them!

03 Vosotros commands - Practice 3

03 Vosotros commands - Practice 2

03 Vosotros commands - Practice 1

03 Ustedes commands - Practice 3

03 Ustedes commands - Practice 2

03 Ustedes commands - Practice 1

03 Usted commands - Practice 3

03 Practice Usted commands with a special guest! - Practice 2

03 Practice Usted commands with a special guest! - Practice 1