Log in

View Full Version : Science discovers Veniom.



crb
11-19-2011, 11:36 AM
http://news.yahoo.com/worlds-lightest-solid-takes-inspiration-eiffel-tower-134809070.html

New solid, lighter than air.

gs4-PauperSid
11-19-2011, 02:41 PM
Yup, caught that the other day. Surprised it was less dense than aerogel even--and that's some neat stuff.

"These lattices are even airier than aerogels, with a density of 0.9 mg per cubic centimeter, "The lattice is 99.99 percent open volume," Schaedler said. "It's about 200 times lighter than Styrofoam."

Rolis
11-19-2011, 02:52 PM
I saw this as well. I do not think the material is lighter than air though-- else it would float and you can see it exerting a downward force on the plant's head.

I think air is roughly 20% a bunch of 40%?? nitrogen and some other shit but for the item to be ligher than air-- even if it was 99.99% that .01% material would have to be made up of atoms with less weight than nitrogen, oxygen or other gases that composed in air.

Haha, someone did ask in the comments when this was posted on a science forums how strong it was. I did want to post with a smart-ass response that it was obviously 0.01% stronger than air.

g++
11-19-2011, 02:54 PM
Yah its actually less dense than air.

Rolis
11-19-2011, 02:59 PM
Hm, you are right-- well why isnt that shit floating then?

g++
11-19-2011, 02:59 PM
its in a cage?

im assuming the experimental nickel plated filling is what the density refers too, the cage looks like regular metal.

Rolis
11-19-2011, 03:00 PM
haha-- good point, I guess...

Latrinsorm
11-20-2011, 07:04 PM
I saw this as well. I do not think the material is lighter than air though-- else it would float and you can see it exerting a downward force on the plant's head.Yeah, something doesn't add up here. It's numerically less dense than air, and yet it's "resting" on dandelion fluff...?
its in a cage?

im assuming the experimental nickel plated filling is what the density refers too, the cage looks like regular metal.The cage is the material. Nickel-phosphorous alloy has a density between that of nickel and phosphorous, it's the voids that give the overall material the low density. The (hollow) bars of the cage are the tubes they describe: 100s of nanometers thick walls, 100s of microns thick bars.