View previous topic | View next topic

strange little things I find on the internet

Page 257 of 257
Goto page Previous  1, 2, 3 ... 255, 256, 257

PDR
1390965.  Sun Sep 26, 2021 6:49 am Reply with quote

When I get my time travel machine working I'll invent it before either of them (and then go on to ensure the Transwarp Equation is invented by Captain Robert Scott rather than the interloper Lt Cdr Montgomery Scott)...

PDR

 
bobwilson
1391026.  Sun Sep 26, 2021 8:00 pm Reply with quote

A relatively rare example of a cover version worthy of note

https://www.youtube.com/watch?v=relfz3ZFsZA

 
RLDavies
1392434.  Tue Oct 12, 2021 3:27 pm Reply with quote

When a massive star dies, it explodes as a supernova, leaving a neutron star remnant surrounded by an expanding debris cloud (nebula).

But when a really massive star dies, it might form a black hole instead of a neutron star. In which case the matter in the nebula might get sucked straight back in again, in a scenario officially called a "massive fail".

It looks like the Hubble Telescope managed to catch a star actually doing this. A massive supernova bright enough to see in another galaxy, and then instead of gradually fading away, it just disappeared.

https://astronomy.com/news/2017/05/black-hole-sun

 
RLDavies
1392448.  Tue Oct 12, 2021 6:17 pm Reply with quote

And in other science news...

Since it's not amazing enough to be able to get an image of the individual atoms in a molecule, researchers have now been able to get an image and measurement of a single atomic bond at the moment of being broken.

https://phys.org/news/2021-10-team-breakup-chemical-bond.html

 
Efros
1392451.  Wed Oct 13, 2021 2:46 am Reply with quote

Interesting that the bond they broke is the one responsible for CO poisoning. It's also a particular type of bond (coordination bond: both electrons that form the bond come from a single atom) and it would be interesting to know the reason they chose this one rather than a more usual one.

 
RLDavies
1392569.  Thu Oct 14, 2021 9:23 am Reply with quote

Concretene -- concrete with an admixture of graphene -- is stronger than ordinary concrete and sets faster, as well.

This test pour of a typical mezzanine floor will use 30 per cent less concrete than a standard floor, with no need for steel reinforcement.

https://www.manchestereveningnews.co.uk/news/greater-manchester-news/secret-sauce-made-manchester-could-21835256

 

Page 257 of 257
Goto page Previous  1, 2, 3 ... 255, 256, 257

All times are GMT - 5 Hours


Display posts from previous:   

Search Search Forums

Powered by phpBB © 2001, 2002 phpBB Group