about pendulum. and I can't understand what in this second case when as vanhees said he ve doubled mass . its a device 2 objects on frictionless surface. woth springs on both sides. and he just moved it.. and wrote this formula
I ve seen a spring with 15.5 kg ball that had a period the same as this ball woth Mr. Lewin on it. which means mass has no matter. My english may be not as good as rest of my languges but I merely remarquing upon the fakt that I see that T1/m1 is not the same as T2/m2... maybe this formula is...
It's a little bit hard to explain how Mr, Lewin's machine works. SO I ll put here this video.
http://www.youtube.com/watch?v=__2YND93ofE&feature=relmfu
My problem with this formula occurs at 24 minute.
Ok but How This can be if ( as Lewin said ) The period of an oscillation is independent of his mass. Here, because its equation it's impossible because to make \frac {(T_{1})^{2}}{m_{1}}=\frac {(T_{2})^{2}}{m_{2}}
equal we have to increase Period if... we have increased mass. Sory, maybe i see...
Hello everybody. Here is a ( I hope) simple question that can't let me sleep. The question is : At the course of physics one of the greatest profesors. Dr. Lewin drew a simple equation that 10Tm(2)= √m(2)/M(1) times 10Tm(1) . It was a harmonic oscilator composed by two object placed on a...
The second one is really really interesting. But many people will reject that idea. Unfortunately :) . It reminds me stillsuit from Dune :D endlessly recirculated :)
[3 person x 7l ]x 30 days = 810 l per month. And have you aver heard about water-diamond paradox? Water is the.mlst precious thing on the world. I don't care about money I am gona save.. I care about water :) :) :)
Meldraft that's pretty nice idea. Ill make a picture of it and post it here...
Indded but It will not work. There is no place to mount it. I search for way to use this water in the time when its flowing. Of course this is great Idea this on-demand heater. But it would not work in my house. The water tubes are really old. Believe me their construction is like before Great...
I would like to consider a little provlvthat have occurred in my own house. I live in very old house whose water tubes transport water really long time. Also there is a gas furnance which heats the water reaaaaly lobg time. To take a shower I need to turn on a tap and wait for hpt water.
The...
I think that the best way to understand the process within the engine you must find some simulation of any engine or just cylinder. There is many of them on web. I'll post some web adress in 2h, now need to go. If you can't find any simulation, check the projects of first engines. Like carbon...
Of course. But it still some way to explain existence (if exists) of white holes. Even if opposite particles have common spin or mass they would disappear if hit each other... But we still... Know nothing about them...just think what could they be
If you think of being some kind o scientist. I think you MUST work on olimpiad problems.improving skills by exercices and poblems (only). Is like trying to be best "excercices resolving man" you would be like most of French students " Je sais comment les resoudre , mais n'ai aucun idee...
Of course "scio me nihil scire " is in power here. Universe doesn't behave the way we want... Maybe.. Maybe not. This is relativity isnt? There is many scenarios of "what would happened with twins if..." I would like to ask... What Would happened if we invert the problem. Make -v and -t. If we...