4 ms·
Speaking of Honda and 2000s, the S2000 engine is a pretty remarkable piece of engineering. It would be really interesting for them to publish data for a car th
by KMag 6y ago
Speaking of Honda and 2000s, the S2000 engine is a pretty remarkable piece of engineering. It would be really interesting for them to publish data for a car that's reasonably obtainable on the used market. Both engine and aerodynamic fluid models would be interesting to play around with.
- mhh__ 6y agoTyre data is literally worth its weight in gold unfortunately
- KMag 6y ago> Tyre data is literally worth its weight in gold unfortunately The minimum amount of energy to flip a bit at the temperature of the cosmic background radiation, converted to equivalent mass via E=MC^2, is minuscule. (The mass of a black hole with one bit of entropy at its surface is also minuscule.) So any data worth storing is literally worth several orders of magnitude more than its weight in gold (assuming the gold and the data are weighed under the same gravitational acceleration). http://scottkurowski.com/massbit/index.htm http://scottkurowski.com/massbit/index.htm Edit: apparently people are taking my response as being more snarky than I intended. I just find it interesting that bits actually have mass. Information is incredibly expensive on a per-mass basis.
- ddingus 6y agoI appreciate your comment and learned something new that is fun to think about.
- mhh__ 6y agoThe tyres mass.
- KMag 6y agoThanks for the clarification. I think we all understood what you meant. A more literal interpretation just reminded me of a tidbit of physics I find very interesting.
- rlonn 6y agoPrevious commenter did write "literally". A word which, IMO, is ridiculously overused and abused by people with a bit of a chip on their shoulder. I'd say they asked for it! :)
- mhh__ 6y agoMy background is in physics (the tyres are a hobby), so maybe I was due. I immediately knew what the comment would be the moment I posted it but it's 6AM so I didn't bother being more precise. There's probably an information-theoretic framework to calculate the value of the data but who cares (Answer: Me, but again 6AM).
- jacquesm 6y agoYou could modulate photons, they are massless.
- phonon 6y agoIt does have momentum though!
- KMag 6y agoand distorts spacetime/generates gravity!
- KMag 6y ago> You could modulate photons, they are massless. Photons have no resting mass, but my understanding that they still distort spacetime. It's not only mass that generates gravity. We're talking about weight, and it's mass-eneregy that warps spacetime/generates gravity.[0] My understanding is that none of the virtual interactions in the Feynman path integral for that photon traveling through spacetime (such as spontaneously becoming a particle-antiparticle pair) affect the far-field gravitational field generated by the photon. Also, 99% of the mass of your body is not electrons and quarks, but the binding energy between quarks. The mass of a proton is ~938 MeV/C^2, but the masses of its quarks sum to about 9 MeV/C^2. The rest of the proton's mass is the binding energy of the quarks. You get a similar ratio for the neutron. The electron's resting mass is roughly 0.5 MeV/C^2. I think the Higgs mechanism is responsible for the rest mass of quarks, leptons, and neutrinos, but the majority of mass in atoms is due to nuclear binding energy, not the Higgs mechanism. Though, my formal physics education didn't go beyond Freshman year E&M, so I could be way off. [0] https://van.physics.illinois.edu/QA/listing.php?id=28195 https://van.physics.illinois.edu/QA/listing.php?id=28195
- FridayoLeary 6y agoit took me time to get that. very clever.