4 replies to this topic

[Logic]

"...Matter at negative absolute temperature has a whole range of astounding consequences: with its help, one could create heat engines such as combustion engines with an efficiency of more than 100%..."

http://www.nanowerk....#at_pco=cfd-1.0

[Turnbuckle]

"...Matter at negative absolute temperature has a whole range of astounding consequences: with its help, one could create heat engines such as combustion engines with an efficiency of more than 100%..."

http://www.nanowerk....#at_pco=cfd-1.0

This is not really a negative temperature. It's a very artificial situation where by the usual definition (and with some loose logic) the temperature could be considered negative. The researchers seem to be experts at imputing all sorts of cosmic relevance to what is very obscure work.

[YOLF]

So still no real hope for a light speed engine or at least one that gets better mpg?

[PWAIN]

Yeah, I read somewhere that one of the things with negative temp is that you get negative gravity or antigravity. If this is true, then you get faster than light travel. Since matter gets heavier when you approach the speed of light, you could combine it with an equal amount of this anti gravity material and thereby have zero mass. Now as your ship approaches the speed of light, you maintain zero mass and can continue accelerating past the speed of light.

If dark matter is antigravitational, then maybe you could use that instead. I know I had some in my drawer somewhere.

[YOLF]

sounds interesting!