this post was submitted on 13 Jun 2024
1274 points (99.2% liked)

memes

10309 readers
2011 users here now

Community rules

1. Be civilNo trolling, bigotry or other insulting / annoying behaviour

2. No politicsThis is non-politics community. For political memes please go to [email protected]

3. No recent repostsCheck for reposts when posting a meme, you can only repost after 1 month

4. No botsNo bots without the express approval of the mods or the admins

5. No Spam/AdsNo advertisements or spam. This is an instance rule and the only way to live.

Sister communities

founded 1 year ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 15 points 5 months ago (2 children)

The technology is getting there. I forget which company did it, but one has developed an insane magnetic suspension system for automobiles.

Right now the limiting factor is the energy required, so battery tech is the bottleneck.

It's a real shame shipstones haven't been figured out yet.

[–] Death_Equity 5 points 5 months ago (1 children)

It was Bose. Yes, the premium sound system producers. It never went anywhere, despite being practical magic, because it added around 2,000lbs and cost six figures.

They also developed a semi-tractor seat using the same sort of voodoo, which is on the aftermarket for around $5k installed.

[–] [email protected] 1 points 5 months ago (1 children)

I've started seeing magnetic suspension offered as a luxury option in nicer cars, wonder if it's derived from that Bose system. I remember watching the demo from the 90s, mind-blowing.

[–] Death_Equity 2 points 5 months ago

Not the same sort of thing. Bose's "magic carpet" suspension used linear electromagnetic drivers and sensors to move the suspension to compensate for the road conditions detected. They took speaker drivers on steroids and did noise cancellation on bumps and dips in the road.

Magneride and similar use an electromagnetic coil to adjust dampening by acting on a ferrofluid, which changes how hard or soft the suspension is. You want a stiff "sport" suspension, fluid is high viscosity and harder to move. You want a soft "comfort" suspension, the fluid is lower viscosity and moves easily.

[–] TheTetrapod 2 points 5 months ago (2 children)

For a heavily constrained system like a car's shock absorbers, couldn't permanent magnets be used instead of electromagnets?

[–] [email protected] 3 points 5 months ago

I think the main advantage to fixed stiffness springs was that it was controllable. So if it was a fixed strength magnet the advantages over springs is likely limited compared to the cost. Magnetic suspension is cool because it's an active suspension system.

[–] [email protected] 2 points 5 months ago

I'm picturing a car crash where some poor sod is perforated by a super strong magnet that went flying