4 ms·
Re: Alcubierre drive It needs imaginary mass, not just negative mass. Edit: I confused the drive's requirements with tachyons.
by danharaj 9y ago
Re: Alcubierre drive
It needs imaginary mass, not just negative mass.
Edit: I confused the drive's requirements with tachyons.
- thrill 9y agoJust take the square root of the negative mass and there you are.
- godelski 9y agoAlso what they produced here is not the exotic matter that would be required in an Alcubierre drive. Also, tachyons have imaginary mass. IIRC Alcubierre drive requires a negative energy density. And commonly they use a term called "exotic matter", which is an extremely vague term.