In this special #DeSTEMber hangout, we take a look at - quite literally - one of the "coolest" parts of CERN.

In the CERN cryogenics laboratory, experts work with liquid nitrogen and liquid helium to cool CERN equipment to temperatures as low as -271°C (about -456°F or 2.15 Kelvin). This temperature is even colder than outer space!

In this hangout, our experts perform hands-on experiments to show the weird and wonderful world of liquid nitrogen, and explain why we need to keep parts of CERN so cold.

This is the last hangout of this series before we pause for the winter holidays. To view previous hangouts see: http://www.youtube.com/playlist?list=PLAk-9e5KQYEroNUYrWHAANKJL3LDz9-L

#DeSTEMber is 31 days of Science, Technology, Engineering and Mathematics (STEM) fun presented by +Girlstart and +Google Science Fair: http://www.girlstart.org/our-programs/destember

#science #physics #scienceeveryday #CERN #HangoutWithCERN #hangoutsonair #handsonlearning #cryogenics  

Be sure to follow +CERN and the #LHC experiments on Google+: +ALICE Experiment +ATLAS Experiment +CMS Experiment +LHCb Experiment

Official website:http://youtube.com/CERNTV

Tonight SURFER Magazine will host the 42nd Annual SURFER Poll Awards on the North Shore of Oahu. While the SURFER Poll has had numerous iterations in its more than four-decade history, the night is essentially a celebration of surfing as popular culture. It started as a tongue-in-cheek reader survey in 1963, when Californian Phil Edwards—fresh off being the first person to ever surf the Banzai Pipeline the prior winter—became the first SURFER Poll winner. The next year a women’s category was added, and in the early 1990s, surf filmmaking awards were added to the celebration.

The night of the 6th, we’ll honor the top ten men and top five women as voted by the readers of SURFER Magazine, and we’ll be presenting awards for Best Barrel, Worst Wipeout, Heavy Water (our award for excellence/craziness in big-wave charging), Best Performance, Best Cinematography, Best Digital Short (acknowledging incredible short films made for online distribution only), and the big one, Movie of the Year. We also give an award to an upcoming surfer who is destined to make an impact on the surf world (Breakthrough Performer), a group or individual who uses surfing to better the lives of others (Agent of Change), and someone whose legacy has shaped the sport of kings and contributed greatly to the surf culture (Lifetime Achievement). It’s a night to celebrate the people and moments that make us proud to be surfers and inspire us never stop progressing.

While the SURFER Poll Awards show is an intimate invite-only affair, we webcast the event in its entirety the night of Thursday, December 6th, so plan to tune in and see how you made a difference. Make sure your opinion is heard—cast your ballot before October 31, 2012.

SURFER Poll award winners are chosen by two groups of people:

1. The Top 10 Men and Top 5 Women are voted on by our readers at Surferpoll.com. Anyone can vote, but voting is limited to one ballot per person.

2. The filmmaking awards are chosen by a panel of judges that includes the SURFER Magazine editorial staff, select members of the Top 10 Men and Top 5 Women categories, notable filmmakers who are not entered in this year’s competition, legendary surfers, and other experts who understand the demands of surf filmmaking. The goal is to honor the films and surfers that will have a lasting imprint on the art and act of surfing.

Ever wonder why the wind blows without any apparent change? It’s because of air pressure. Air always flows from higher to lower pressure, since the atmosphere is constantly trying to reach a balance or equilibrium. 

Join the +Google Science Fair and our partner +AccuWeather.com's  meteorologist +Meghan Evans as we explore how air pressure changes with an “Egg”speriment. It’s an at-home experiment as part of the 31 days of #deSTEMber .

We’ve added the materials list for you to follow along with the participants. This is a great experiment to do with your kids to explain why meteorologists analyze the air pressure to help forecast the weather. 

Materials Needed:
- Matches
- A peeled hard-boiled egg
- A glass bottle (glass milk bottles and carafes work well)
- A paper towel
(Please note: using matches and lighting things on fire requires supervision from a parent or adult)

This December, Girlstart and Google Science Fair are celebrating the importance of Science, Technology, Engineering, and Mathematics (STEM) with a series of Hangouts on Air--and we're taking part! For our first DeSTEMber hangout, we're focusing on the importance of all animals--including snakes. You may think snakes are scary, but we really need them on our planet. Join San Diego Zoo Global Ambassador +Rick Schwartz and his eight-foot boa constrictor friend to learn how snakes have adapted to survive with no arms or legs, and why snakes are very important to the ecosystems that they are native to. Photo by Nathan Rupert (http://ow.ly/fJcN5)