Recent content by Tachyon son

Brilliant! Fully understood now.

Nice links, specially the first one, very comprehensive. I have read EBC one many times and there is something I am not able to fully grasp yet: - It is said that Braking torque = 2µFr (Where F is clamping force applied by caliper) - Later, the author highlights that F = Pressure x Area - But...

Why not? Because the force is applied further away from the axis on bigger rotors. With your hand is much easier to stop a spinning bicycle wheel from the outer side (tyre) than from near the hub.

Ok, very good recap. So, if at the end stopping distance is all about how fast can brakes generate enough torque to lock up the wheels, then is it correct to derive that the higher the speed the more advantage to bigger rotors? (The threshold before the ABS kick in is bigger at higher speeds...

The heavier mass of the bigger rotor requires more energy to be stopped. I suppose the higher rotational speed of the bigger rotor requires more energy to be stopped.

Hello all, I am struggling to find out what exactly makes to have very little advantage in terms of cold stopping distance when you fit larger brakes on a car. Important note, the discussion is only regarding the braking power in the very first stop, before the heat starts to become a problem...

Hi all, We have a discussion among friends after this video: For sure the energy involved in a tire spinning at those speeds is massive enough to create these damage: But what kind of energy is exactly the one which directly produces that body rip? Rotational kinetic energy...

Priority is to minimize damage to people inside car. Let´s assume all ocupants are properly seated, with seat belts on and modern head restraints systems.

Hi there, we are having a tough discussion among friends concerning this topic: Imagine you are inside your car, stopped in the road. There is no obstacles in front of you, just plain road. Suddenly, because of the sound coming from the back, you realize another vehicle is going to impact you...

Regarding the stars in the sky at night, I have read a lot of times about the "false" image we get from it. Mainly due to gravitational lensing and stars that no longer exists altough their light is still there. But, how is it possible then that, as I far as I know, the constellations are...

This comes from a problem originated between a friend and me this morning looking at this test info: http://www.roadandtrack.com/assets/download/0-200_Data.pdf.pdf We were trying to calculate how many distance there are between the Viper and the Veyron when the first hits 200 mph (to get the...

Hello, Since we see a 1 lightyear -away from us- star how it was 1 year ago, Is the light emitted from surface of Earth traveling the same way? What about the effects of atmosphere? If first is afirmative, Is it physically possible (with the proper technology) to capture that light in a...

Why when you jump inside a moving train you land exactly in the same place, instead of landing closer to the tail of the train? I know it a stupid question but I am not able to find what physical law applies in this case. Has it something to do with momentum cancellation? (I remember the...

Nice focused answer, thanks! :smile:

Ok, I understand, so that EM radiaton comes from photons emitted by electrons?