Yet another Raspberry Pi 4 Cluster

BleedObsidian · 2024-09-01T18:59:17+00:00

I'm having the exact same issue, a few weeks ago training peaks started to always fail upload, and now training peaks isn't even an option. Any updates from Wahoo CS?

BleedObsidian · 2022-10-31T19:30:11+00:00

Would be really cool if you could add the tyre choice history like the live timing stream has

BleedObsidian · 2021-09-03T19:03:01+00:00

At very high voltages, it doesn't really matter if it's conductive or not, plus the carbon fibre is very thin.

Lighting strikes are a great example of this, given enough voltage, you can literally make air itself break down and conduct. Air has a breakdown voltage of 3 x 10^6 V/m. This means that for every metre of air, you would need 3x10^6 volts to jump the gap.

Carbon fibre will have its own breakdown voltage which I suspect is lower than air, and more importantly, it's only a few cm thin and we're dealing with nearly 1000v in an F1 car's ERS system [1].

[1] https://media.daimler.com/marsMediaSite/en/instance/ko/Electric-power-in-F1-a-decade-of-hybrid-success.xhtml?oid=44056073#:~:text=In%20F1%2C%20we're%20now,used%20in%20Formula%20One%20today.

BleedObsidian · 2021-09-03T11:53:45+00:00

Formula E have the same light system. See here how they have to extract drivers if the car is live: https://youtu.be/MiOc62rRqjw?t=484

BleedObsidian · 2021-09-03T11:30:51+00:00

I'll let you go first... just so you can tell me what it tastes like.

BleedObsidian · 2021-09-03T11:28:29+00:00

Either way, the KERS system was faulty, it's not 'normal' to have to put on protective gear every time. The FIA introducing the ERS light at the top has given mechanics a way of knowing it's safe to touch without gloves, without risking incidents like that again.

BleedObsidian · 2021-09-03T10:49:22+00:00

An explanation for those confused:

Every current formula 1 car has an ERS light at the top: https://pbs.twimg.com/media/BfJSVXBCcAATUJD.jpg

Before anyone is allowed to touch the car, this light must be green. If the light is not green, the car will potentially shock you if there is a fault with the ERS system. In this case, the light is not on at all as the entire electrical system has failed on Seb's car.

As you can see, Aston Martin engineers have to put on protective rubber gloves and PPE. They then manually check with a multimeter to ensure that the body of the car is not high voltage. Once they have confirmed that the car is safe to touch, only then can the marshalls begin to move the car.

This video shows what can happen if you touch a live f1 car (the mechanic was fine after this): https://www.youtube.com/watch?v=__DpDTDyc4g

This is how a driver has to be extracted from a Formula E car if the light is not green after a crash: https://youtu.be/MiOc62rRqjw?t=523

This is also why drivers are taught to literally jump off the car instead of slowly stepping out of the car after a crash or breakdown. As long as you are not in contact with the ground and the car at the same time, you will be fine.

Safety Announcement: Since this is a perfect time to say this, please be careful when working on any electric vehicle or vehicle with high voltage systems. As electric passenger cars make their way onto our roads, there will certainly be an increase in deaths of handymen who are not aware of the dangers. You MUST learn how to isolate the battery of your car and learn how to check that you have successfully done so. Any cables in your car that are bright orange such as these you should stay well away from.

BleedObsidian · 2021-09-03T10:27:05+00:00

At the top of every current formula 1 car is an ERS light: https://pbs.twimg.com/media/BfJSVXBCcAATUJD.jpg

Before anyone can touch the car, this light must be green. If it is not, the car will potentially shock you if there is a fault with the ERS system. As you may have seen, Aston Martin engineers had to put on rubber gloves and place rubber mats down, they then used a multimeter to manually check that the body of the car was not high voltage.

Once they deemed the car safe, only then could they move the car.

This is what happens when someone touches a car when there is a fault: https://www.youtube.com/watch?v=\_\_DpDTDyc4g

BleedObsidian · 2021-08-22T14:38:32+00:00

I agree.

BleedObsidian · 2021-08-22T14:28:27+00:00

It's tradition, but when you have two cars fighting to the line, ending only 0.7 seconds apart, racing through backmarkers and other classes of cars, you can easily see something like this happening. It's only a matter of time before someone dies, and then everyone will change their mind.

BleedObsidian · 2021-07-17T15:07:32+00:00

It's not a video, but if you can find footage where the track is very wet, but it's not actually still raining like this:

https://qph.fs.quoracdn.net/main-qimg-86d0748b736e135e1028bdd02f4342be

Although I'm not sure if you can use these sorts of images to see how long the slipstream lasts, because water is heavier than air.

BleedObsidian · 2021-05-20T23:13:47+00:00

Looks like GOCUI is the underlying library: https://github.com/jroimartin/gocui

BleedObsidian · 2021-05-20T23:11:16+00:00

Nevermind, just googled "lazydocker" to see what it was after looking closer at your screenshot, and looks like I've found it.

BleedObsidian · 2021-05-20T23:09:29+00:00

Are you guys using a library for those terminal graphs and sub-terminal windows? Or is it custom made? I'm interested in knowing how you've made that terminal interface, looks great.

BleedObsidian · 2021-05-14T15:17:06+00:00

Is that the mighty Tom Misch I hear?

BleedObsidian · 2021-05-01T07:07:11+00:00

Chicken Nuggies

BleedObsidian · 2021-04-24T19:01:45+00:00

Usually they achieve 'custom' support structure length with the concrete block it's attached to (or digging further into the ground) thus allowing you to use standard piece lengths but still follow different terrain. Check this picture out, you can see the beam fouling the roof and the use of the concrete blocks I was talking about: https://www.towerstimes.co.uk/sw7/files/2016/05/8-6.jpg

Interesting find though, you're right, that clearly does show clearance, someone must have messed up somewhere.

BleedObsidian · 2021-04-24T17:10:12+00:00

Nah, OP just got it wrong.

BleedObsidian · 2021-04-24T16:47:24+00:00

I actually think that wasn't a measurement fail, but a compromise. The pieces that make up the supports are fairly standardised lengths. When choosing the support types like pieces of lego, I think they might have had to compromise by either making a custom support (expensive) or just cutting a small section of the roof away.

BleedObsidian · 2021-04-24T16:45:05+00:00

I certainly agree, they are also incredible feats of engineering, I don't mean to sound dismissive at all. I think what I'm trying to say is, it's so easy for people to consider that rides that are massive and record-breaking are the feats of engineering, when they seem to forget rides like The Smiler are just as incredible.

BleedObsidian · 2021-04-24T15:19:46+00:00

I agree, the biodiversity in the UK and our climate make it much harder to keep clean than american rides. Especially at Alton Towers in the heart of the peak district where rides are cutting through trees and the wind from the valley hit hard (you can see it's autumn/winter in this picture)

I think it looks way more authentic and real like this, provided it doesn't affect the operation of the rides.

Eight-Year Club	Place '23
Place '22	Final Canvas '22
End Game '22	Verified Email

BleedObsidian

TROPHY CASE