General statistics
List of Youtube channels
Youtube commenter search
Distinguished comments
About
Mikko Rantalainen
Искаженное восприятие
comments
Comments by "Mikko Rantalainen" (@MikkoRantalainen) on "Искаженное восприятие" channel.
Previous
1
Next
...
All
3:11 Please, check the ball joints for your front right wheel of the Supra. It appears to have loose ball or two in the front suspension because the wheel is moving so much relative to car body.
48
It seems that the only part that would have needed a slower cut speed was the camera lens. Everything else seems to cut very nicely even with this cutting speed. That's very nice water jet indeed.
3
I was surprised to see that the Nitromethane burning in big bottle caused stroboscopic effect. Very nice slow motion videos and special thanks for the actual audio recorded!
1
Great work demonstrating this kind of old school starter. The ingenious part of this design is that if the gears do not mesh, the starter motor will not be connected to electric power at all. All the spinning of the pinion gear is just springs inside the mechanism that gets pushed by the solenoid. Some pinion gears have some kind of forced release mechanism in case the solenoid hangs while in starting position. If the pinion doesn't release, the engine will spin starter motor too fast and the coils in the anchor will be thrown away by high g-forces. That will typically destroy the starter and may take the teeth from the flywheel, too. I think the video would have been more interesting if you had included info about what can go wrong and what happens then. The most common failure mode for the solenoid is facture in the fork that tries to connect the solenoid to the pinion because the spring in pinion is supposed to pull the solenoid away from the contacts.
1
Wow! The design of that that jet start motor is really poor. Have it sit at the intake of the engine and depend on clutch to safeguard the plastic parts from getting fractured and entered into the motor?? Is there some reason why electricity is not used to run pressurized air to rotate the motor instead of direct mechanical connection like this?
1
Exactly, this is Batmobile v0.1
1
4:30 I think it would have been better to rotate the video 180 degrees to make road push from down to up in the video when the tire rolls on ground. Other than that, great idea and execution! I wouldn't have tried this with such a low profile tire but surprisingly the camera survived. I think it would be interesting to see this going with long corners (e.g. 180 degree turn on big parking slot) to see how much sidewalls push sideways. You might need a bit taller profile for that, though.
1
The length of the pulse isn't the important part, the important part is how close to traction limit the whole braking sequence can go. It seemed to me that Tesla was too aggressive on snow with those tyres and locked the wheels too much. Mercedes was close to optimal on slippery conditions. The optimal slide rate would be around 5% if I remember correctly: the tyre should rotate about 5% slower at all time than freely wheeling to get maximum stopping performance. That would cause the tyre to slip nearly all the time because braking force is high enough but not slide around to allow controlling the car. If the wheel rotation totally stops during one pulse, the ABS controller is doing poor job.
1
If you accept much lower acceleration, something like 20 year old VW Golf TDI will run around 55–60 MPG with zero modifications. Looking forward to see collab with LiquidPiston!
1
(comment for Youtube algorithm) Great video, man! You got new instant subscriber without even checking out what other videos you have!
1
You need to dub the spoken parts in post-production while the engine is running :D
1
It seems that the glitter was way too heavy to stay airborne within the balloon. I guess you would get much better results by small explosion (e.g. small fireworks load) within a cup of glitter inside the balloon immediately before popping the balloon. Another option would be to try to create a fast moving vortex near the balloon inner surface but I guess that's next to impossible to do with a human inside the balloon. If the vortex was moving fast enough, it could keep glitter particles airborne. Third option that comes to mind is small pipe pushing air inside with very high velocity and trying to point the nozzle to the location where glitter drops. That should be able to make the glitter airborne again after falling to ground.
1
Trying to melt the snow is definitely no-go due the amount of energy snow needs to melt it. With powerful enough jet engine, you could blow the snow away but it might cause it to fly towards other things so fast that it would cause collateral damage. When this little engine completed the tunnel, it seemed to start throwing snowballs towards the building in the front of the carage.
1
When the wiring failed in our VW TDI crankshaft timing sensor the engine went totally dead, too. It sure is an important sensor. I have to wonder why they don't put two of those to every engine because those are not hugely expensive parts and if it fails on the road, the car will stop.
1
If that engine can take water spray into the air intake, that might be interesting to see in slow motion with transparent body.
1
@David Rutherford Just add a direct drive motor directly on the wheel axle. Zero drag when no electricity is applied. Of course, the only problem with that solution is cost.
1
It's almost like they built this car and the suspension to survice Autobahn...
1
Jet engines output immense amount of heat. Having your car next to output is not smart unless you're thinking about getting it repainted in any case.
1
Even that Toyota would do fine in Winter with proper tyres. E.g. Michelin X-Ice Snow would increase the traction a lot compared to these tyres.
1
Great work and I'm looking forward for part 2 to see even more see through -model. It would have been nice to tell more about the materials you used. Was the transparent part quartz glass?
1
@stevewalston7089 Polycarbonate doesn't take heat too well and I was just wondering if the air movement could actually cool the surface fast enough. And I would guess the cooling power is not enough.
1
Previous
1
Next
...
All