Liquid Ping Pong in Space | EcoSciTech
Liquid Ping Pong in Space
NASA astronaut Scott Kelly, who marked day 300 of a historic year in space on Jan. 21, 2016, shows off another fascinating feature of life in microgravity. Kelly used two paddles with hydrophobic, or water repellant, features to pass a sphere of water back and forth. Scientists use the microgravity environment of the space station to advance scientific knowledge in Earth, space, physical, and biological sciences that otherwise wouldn't be possible down here on the planet. The paddles are polycarbonate laser etched so that the surfaces are actually arrays of 300 micrometer posts (0.3mm). The surfaces were then spray coated with a Teflon coat. The combined effects of surface roughness and non-wettability produce a super-hydrophobic surface capable of preventing water adhesion in dynamic processes. The larger the drop, the less force it takes to break it up. The smaller the drop, the harder you can hit it. Scott is demonstrating about a 4 mL drop (over 100 times larger than a rain drop). Learn more and follow along with the one-year mission online or using #YearInSpace http://www.nasa.gov/oneyear Read more on 4K in space:
-
55:19
LFA TV
23 hours agoKamala’s Triple Whammy: Flooding, Port Strikes and War | Trumpet Daily 10.3.24 9PM EST
53.4K16 -
46:23
Donald Trump Jr.
16 hours agoJD Shows why He was the Perfect VP Pick, my Full Reaction | TRIGGERED Ep.179
137K274 -
LIVE
Right Side Broadcasting Network
2 days agoLIVE REPLAY: President Trump to Hold a Rally in Saginaw, MI - 10/3/24
3,642 watching -
46:41
Kimberly Guilfoyle
16 hours agoHard Truths & Dishonest Dems, Interviews with Roger Stone & Rep Michael Waltz | Ep. 162
100K49 -
1:34:46
Redacted News
13 hours agoEMERGENCY! UKRAINE BOMBS NUCLEAR FACILITY, AMERICANS TOLD TO GET OUT OF LEBANON NOW | Redacted
174K436 -
44:57
Candace Show Podcast
12 hours agoI Spoke With Kamala's Uncle! | Candace Ep 78
174K873 -
5:51
The Gun Collective
13 hours agoExposing the way to make her LOSE.
48.9K27 -
1:13:06
Exploring With Nug
1 day agoTYRANT Fire Chief Threatens Helicopter Pilot With ARREST!
42.1K21 -
1:52:55
The Quartering
15 hours agoKamala Harris INSULTS Hurricane Victims, Styx Update! Woke Disney Actress Meltdown, Meme Law Fails!!
159K117 -
4:10:33
Drew Hernandez
17 hours agoTRUMP RALLY MICHIGAN, KAMALA'S WOMAN ABUSER & HURRICANE VICTIMS SCREWED BY FEDS
83.6K34