If you dropped a water balloon on a bed of nails, you’d expect it to burst spectacularly. And you’d be right – some of the time. Under the right conditions, though, you’d see what a high-speed camera caught in the animation above: a pancake-shaped bounce with nary a leak. Physically, this is a scaled-up version of what happens to a water droplet when it hits a superhydrophobic surface.
Water repellent superhydrophobic surfaces are covered in microscale roughness, much like a bed of tiny nails. When the balloon (or droplet) hits, it deforms into the gaps between posts. In the case of the water balloon, its rubbery exterior pulls back against that deformation. (For the droplet, the same effect is provided by surface tension.) That tension pulls the deformed parts of the balloon back up, causing the whole balloon to rebound off the nails in a pancake-like shape. For more, check out this video on the student balloon project or the original water droplet research. (Image credits: T. Hecksher et al., Y. Liu et al.; via The New York Times; submitted by Justin B.)
Today we celebrate International Women’s Day, a day in which we honor and recognize the contributions of women…both on Earth and in space.
Since the beginning, women have been essential to the progression and success of America’s space program.
Throughout history, women have had to overcome struggles in the workplace. The victories for gender rights were not achieved easily or quickly, and our work is not done.
Today, we strive to make sure that our legacy of inclusion and excellence lives on.
We have a long-standing cultural commitment to excellence that is largely driven by data, including data about our people. And our data shows progress is driven by questioning our assumptions and cultural prejudices – by embracing and nurturing all talent we have available, regardless of gender, race or other protected status, to build a workforce as diverse as our mission. This is how we, as a nation, will take the next giant leap in exploration.
As a world leader in science, aeronautics, space exploration and technology, we have a diverse mission that demands talent from every corner of America, and every walk of life.
Learn more about the inspiring woman at NASA here: https://women.nasa.gov/
"Don't mind if I do". Our drunk scientist sneaking a sip! Full episode tomorrow at 10:30, subscribe and never miss it! #blerd #hilarious #video #gif #funny #stem #science #experiment http://ift.tt/2oj56LT
Go. Get. COVERED! Enrollment started yesterday and ends December 15! Don’t forget!! Please ignore the following hashtags. They are for the sole purpose of spreading this reminder further. #funny #friends #healthylifestyle #congratulations #halloween #naturalhair #makeup #me #meme #memes http://ift.tt/2iTXazP
Please subscribe, like, comment, and donate! Next (and last) episode April 15, 2017. Stay tuned for Bloopers from this episode on April 8, 2017. Starring: Candice Lola Directed by Rebecca Berger Produced by Rebecca Berger and Candice Lola Written by Candice Lola Editing, Color, Sound Design by Rebecca Berger Animation by Rachael K McDonald Links: Music: http://ift.tt/1JICaNj and http://ift.tt/2lquxdO http://ift.tt/2lINlQJ http://ift.tt/2lqtjzr http://ift.tt/2lIL08B http://ift.tt/2lqvuCQ (Donations are always welcome!) http://ift.tt/2lITyw7 http://ift.tt/2lqvQJO
https://futurism.com/images/terraforming-mars-practical-guide
Please subscribe, like, comment, and donate! Next episode March 18. 2017. Stay tuned for Bloopers from this episode on March 11, 2017. Starring: Candice Lola Directed by Rebecca Berger Produced by Rebecca Berger and Candice Lola Written by Candice Lola Editing, Color, Sound Design by Rebecca Berger Animation by Rachael K McDonald Links: Music: http://ift.tt/1JICaNj and http://ift.tt/2lquxdO http://ift.tt/2lINlQJ http://ift.tt/2lqtjzr http://ift.tt/2lIL08B http://ift.tt/2lqvuCQ (Donations are always welcome!) http://ift.tt/2lITyw7 http://ift.tt/2lqvQJO
We've got a new trailer! Doesn't this get you even MORE excited (DontThinkAboutItJustAdmitUAre)! March 4! Check out the trailer and subscribe to the link in the bio so that you don't miss out!! #drunk #science #drunkscience #funny #slime http://ift.tt/2l0tywB
The official page of Drunk Science! An enthusiastic host performs simple experiments and then humorously explains the science behind the result, all while visibly drunk.
126 posts