Live data from Hacker News

New world record with an electric racing car: From 0 to 100 in 0.956 seconds

ethz.ch

251–260 of 307 posts

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#251
post #212

Earlier quoted context omitted.

And the Tesla plaid is the fastest nurburgring sedan ever made. Go ahead, say that's not a sports car.

Its not a sports car. Besides, BMW M4 CSL, Jaguar XE project 8, BMW M3, Mercedes AMG 63 GT have faster lap times.

Fine. At the time when it ran that time it was the fastest, and faster than practically every sports car ever made.

The nurburgring is about the most sports car track ever made. I don't really know how to measure anything about a car's sportiness other than its speed around the track generally agreed to be the most "Gran Turismo" style.

If you want your own personal gatekeeping standards for "true sports car", whatever. When batteries double in density in the next ten years, your gatekeeping will look even more ridiculous.

The ICE drivetrain is a zombie at this point that is surviving on inertia and the incompetence of legacy automakers.

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#252

Earlier quoted context omitted.

Derivatives of relative displacement as defined by a distance metric in a [e.g. metric tensor] space: Length = Point2 - Point1 Length * Time^-1 = Velocity or Speed Length * Time^-2 = Acceleration Length * Time^-3 = Jerk Length * Time^-4 = Snap or Jounce Length * Time^-5 = Crackle Length * Time^-6 = Pop Displacement (geometry) > Derivatives: https://en.wikipedia.org/wiki/Displacement_(geometry)#Deriva... Fourth, fifth…

Something weird about this is that humans very often ascribe the sensation of d^ns/dt^n, to feeling d^n-1s/dt^n-1. So people will say that something which accelerates quickly is 'fast'. Or they will say, when they feel themselves initially being pressed back into their seat as a plane starts its takeoff roll, that they are experiencing 'acceleration' when what they are experiencing is actually jerk. The thing is, you…

>The thing is, you can't actually feel motion at a constant speed

In a vacuum. If you roll the window down, or if the atmosphere starts ablating you into a hot plasma then you may realize you're going very fast.

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#253
> “But power isn’t the only thing that matters when it comes to setting an acceleration record – effectively transferring that power to the ground is also key,” says Dario Messerli, head of aerodynamics at AMZ. Conventional Formula One cars solve this through aerodynamics: a rear or front wing pushes the car to the ground. However, this effect only comes into play when the car has reached a certain speed. To ensure strong traction right from the start, the AMZ team has developed a kind of vacuum cleaner that holds the vehicle down to the ground by suction.

Kind of hilarious.

EDIT: why the downvotes? Isn't it at least somewhat funny that this being characterized as a "vacuum cleaner", given that there's no "cleaning" going on?

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#254

I was wondering how this compared to motorcycles, and didn't realize that today's production motorcycles are not significantly faster than modern hypercars, the fastest motocycle clocking in at 2.2 seconds [1] Ignoring the million dollar sports cars, other cars such as Porsche 911 turbo s from 2020 is 2.1s.[2]. I know, Tesla and Lucid, etc are also crazy fast, but I believe their quoted 0-60 times are all with a roll…

MotoGP bike vs Rimac Nevera

https://youtu.be/_3868Dnogrk?si=o4rkjjOcdHIBSbMt

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#255
post #235

The title should mention 100kmh, not mph

98% of countries use kph for vehicle speeds, also 0-100kph is a very common benchmark. If it was 0-60 I might assume mph.

Sure, but it doesn't hurt to put kph in the title. I assumed it was mph.

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#256
post #252

Earlier quoted context omitted.

Something weird about this is that humans very often ascribe the sensation of d^ns/dt^n, to feeling d^n-1s/dt^n-1. So people will say that something which accelerates quickly is 'fast'. Or they will say, when they feel themselves initially being pressed back into their seat as a plane starts its takeoff roll, that they are experiencing 'acceleration' when what they are experiencing is actually jerk. The thing is, you…

>The thing is, you can't actually feel motion at a constant speed In a vacuum. If you roll the window down, or if the atmosphere starts ablating you into a hot plasma then you may realize you're going very fast.

Or the air's going very fast past you. Who can tell?

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#258

Earlier quoted context omitted.

A similar thing was done in F1 in 1978: https://en.wikipedia.org/wiki/Brabham_BT46 It was swiftly banned of course, since it worked too well.

Or not well enough? These cars would appear to be utterly dependent on maintaining a very specific distance from the track for the ability to stay grounded. You imagine going into a curve at high speed and the slightest body roll or debris on the track that might kick the car up an inch or so would break the suction and send the car flipping like a pancake.

Something like that happened in the 1999 Le Mans to Mercedes[0]. It happened three times that race weekend before they decided to retire their last remaining car.

[0]: https://www.youtube.com/watch?v=e21ZjwZGjiQ

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#259

Earlier quoted context omitted.

Electric: 0-60mph in ~0.9s Top Fuel: 0-60mph in ~0.4s Wow.

yeah top fuel is bonkers those engines literally eat themselves alive down the track within milliseconds! hardcore!!!!

bonkers is a good word. I've never enjoyed drag racing and top fuel cars are incredibly wasteful and yet, one has to admire and stand in awe at the engineering. Every single aspect of those cars is off the scale insane and then some.

They use spark plugs, driven by more amps than an arc welder. But the plugs melt away in just a few instants, the rest of the run the engine is dieseling from the extreme heat.

The supercharger alone takes so much power to turn that barely any car on the street could even run it.

The tires are quite something, watch slow motion videos.

https://autowise.com/a-nitro-burning-top-fuel-engine-the-mos...

Re: New world record with an electric racing car: From 0 to 100 in 0.956 seconds

#260
post #252

Earlier quoted context omitted.

>The thing is, you can't actually feel motion at a constant speed In a vacuum. If you roll the window down, or if the atmosphere starts ablating you into a hot plasma then you may realize you're going very fast.

Or the air's going very fast past you. Who can tell?

Unless you’re in a wind tunnel or a hurricane, you can be pretty confident in the reason for the fast air.
Post reply on HN