On 14/02/18 10:06, Davidm wrote:
On BBC Breakfast this morning there was an article about a new
material that was black and that absorbed over 99.8% of light (I can't
remember it's name), but the comment was made that it's more expensive
than gold.

"Vantablack"? It's not that new - NPL/Surrey University (the latter own
the name)

"absorbing up to 99.965% of radiation in the visible spectrum" (Wikipedia)

They then went on to talk about, and show clips of, a building at the
winter olympics that has been clad with this stuff, it looked wierd,
and people commented that they felt quite disorientated looking at it.
Must have cost a bloody fortune though if the cost comment was true.

I can imagine some interesting, and scary, applications for this
stuff.


There are cheaper alternatives that are not as good, but still utterly
amazing - including a spray paint called "Black 2.0"

https://www.livescience.com/58561-sp...-material.html