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The Meaning and Use of Mustn't

Adults Grammar Smrt Live
Learn how English speakers use mustn't to express negative obligations. This lesson is for students at a pre-intermediate level.

Lionel Messi's goals make commentators FREAK OUT.

Adults Sports TV
What a goal by the greatest & what a commentary by ray hudson

I Will Not Let An Exam Result Decide My Fate

Adults Education Music
"I Will Not Let An Exam Result Decide My Fate" picks up on the education topic but takes a different stance and angle from "Why I Hate School But Love Education".

Ball-Zee - UK Finest Beatbox

Adults Creativity Music
BALL-ZEE Aka Patrick Hirst is the UK beatbox champion 2011. Conjuring everything from deep, dirty bass lines, heavy hitting drum beats and amazingly realistic sound fx using only the power of his vocal chords and mouth!

Using Must for Obligation

Adults Grammar Smrt Live
Learn how English speakers use must to express important obligations. This lesson is for students at a pre-intermediate level.

How to Make Sentences with Must

Adults Grammar Smrt Live
Learn the rules for making English sentences with must. This lesson is for pre-intermediate students.

Wringing a wet washcloth in space

Adults Science Space
International Space Station commander Chris Hadfield soaks a washcloth, gives it a twist, and...well, you'll see.

Birds-of-Paradise Project

Adults Animals Nature
This fall, the Cornell Lab of Ornithology and National Geographic are bringing the Birds-of-Paradise Project to the public. Get an advance look now...and witness diverse strategies of evolution at work and experience one of nature's extraordinary wonders - up close.

What are Modal Verbs?

Adults Grammar Smrt Live
Learn how English speakers use modal verbs to add meaning to a verb or sentence. This lesson is for pre-intermediate students.

How to Use the Present Perfect to Explain Now

Adults Grammar Smrt Live
Learn how English speakers use the present perfect simple to explain the present with finished, past actions. This lesson is for students at a pre-intermediate level.

Unbelievable Wingsuit Cave Flight

Adults Life Sports
Alexander Polli does the never before done-a tactical flight through a narrow cave on a rugged mountainside. The flight starts with a jump from a hovering helicopter, Alexander reaches speeds of 250 km/h (155 mph) while following a precise trajectory leading to the cave opening, he then fully commits and flies directly through the narrow opening of the "Batman Cave!"

The Hunger Games: Catching Fire

Adults Film Marketing
THE HUNGER GAMES: CATCHING FIRE begins as Katniss Everdeen has returned home safe after winning the 74th Annual Hunger Games along with fellow tribute Peeta Mellark.

How Linux is Built

Adults Programming Software Engineering
While Linux is running our phones, friend requests, tweets, financial trades, ATMs and more, most of us don't know how it's actually built. This short video takes you inside the process by which the largest collaborative development project in the history of computing is organized.

Screen Grab - Simon's Cat

Adults Creativity Film
We have just launched the NEW FILM! Let us know what you think of 'Screen Grab'.

ELYSIUM - Official Trailer

Adults Film Marketing
Made by the creators of district 9 ELYSIUM looks to be the next world conflict thriller.

Man Gobbles at Turkeys Turkeys Gobble Back

Adults Humor Internet Culture
Must watch very funny

Flyboard

Adults Sports Technology
Welcome to Rocky Mountain Flyboard, home of the hottest new extreme watersport to hit the Wasatch Front. Whether you want to rocket 45 feet out of the water, swim like a dolphin, or soak the top deck of your group's houseboat at Lake Powell, riding a Flyboard is an experience like none other! Website

Human Chair Scare Prank - Hidden Man

Adults Creativity Humor
Magician Rich Ferguson is up to his pranks mixed with magic again as the hidden man in the chair prank!

The Science of Cats

Adults Pets Science
A few things that you might have not known about cats.

How Liquipel Will Make Your Phone Waterproof

Adults Physics Technology
We check in with the team at Liquipel, a company that impressed us last year with its water-resistent nano-coating for smartphones. Dunking an iPhone into a tub of water and watching it still work perfectly is still amazing and something our brains struggle to comprehend.

Mystery of Prince Rupert's Drop at 130,000 fps - Smarter Every Day

Adults Physics Science
Being able to calculate the failure front velocity of a Prince Rupert's drop is a pretty big deal. For years this was a scientific mystery. High speed camera technology is only recently fast enough to provide data like this. Thanks to Vision Research for letting me use the V1610 to try to unravel this mystery for the public in general.