I want to project a circuit that lower the pitch of a sound input by half and plays it closer to real time as possible. I thought about converting the input to digital and then to analogical, with a slower clock. But I wonder if i could do it using only analogical electronics.
I have an indecision between physics and engineering since by being an engineer I think there would be more and better job opportunities (still I think i would study physics the same by myself). I wish to now about what opportunities i might get by graduating in physics, including eventual...
I was wondering how could I hold a lot of charge inside, for example, a ball. I thought by wrapping it in an isolant and using a hole with a semiconductor to charge it without letting anything out. But them it also could blow apart by the repulsive force of itself. Therefore, I got curious of...
Homework Statement
Inside a mass M box, over a horizontal floor, there are a massless spring of elastic constant k, fixed to a body of mass m. That body is trapped to a wire in the bottom of the box. After the wire breaks the box will jump with which deformation b of the spring?
Homework...
Thank you very much, it's pretty clear now to me. So, according to the material you pointed me, if the twin in the spaceship is accelerating, to use him as reference it would be necessary to consider a "pseudo-gravitational field" canceling the acceleration. Am I right?
I have already read about the twins paradox a lot of times, but what puzzles me is that how the Universe would "now" what twin had to be younger since, if the spaceship travels at high speed in relation to Earth, the planet would move the same with the ship as reference.