5 ms·
So no proof will ever be enough for some? Are EM-Deniers going to be a 'thing' now?
by evo_9 10y ago
So no proof will ever be enough for some? Are EM-Deniers going to be a 'thing' now?
- hwillis 10y agoIf it can accelerate forever, thats proof enough for everyone. However violating the conservation of momentum is a Big Deal. Mathematically that shouldn't be possible due to Noether's. The bar to proof is therefore very high.
- naasking 10y agoGeneral relativity doesn't conserve energy in some spacetimes, so it's not unheard of.
- andrewflnr 10y agoI'm fairly certain GR conserves momentum, even if it doesn't conserve energy.
- naasking 10y agoI thought so too until recently, but in GR energy and momentum are unified in an energy-momentum metric which is only locally conserved [1]. [1] https://en.wikipedia.org/wiki/Physical_theories_modified_by_general_relativity#Conservation_of_energy.E2.80.93momentum https://en.wikipedia.org/wiki/Physical_theories_modified_by_...
- gus_massa 10y agoI'm also a yeti-denier! With enough proof you can convince the physics community, even if the result is initially weird. My favorite examples are https://en.wikipedia.org/wiki/Wu_experiment https://en.wikipedia.org/wiki/Wu_experiment and https://en.wikipedia.org/wiki/High-temperature_superconductivity https://en.wikipedia.org/wiki/High-temperature_superconducti... . I think you can push a little against the magnetic field to rotate and change your orientation, but to gain height the magnetic field is not useful. [Edit: Mmmm I'd change "but to gain height the magnetic field is not useful." to "but to gain height pushing against the magnetic field is not efficient."]