mandag den 31. marts 2014

Physics??

I couldn't sleep last night, and my mind started wandering, and as usual when suffering from sleep deprivation at 3am, I had a revelation. This one was a little different than usual though, I started thinking about the physics of a room whithout time (don't know why), I could conclude that gravity wouldn't be factor as it is a function of time (9.82 m/s^2), and since gravity is not a factor mass can't be either, right?? But gravity got me thinking, newtons first law of motion reads, ``When viewed in an inertial reference frame, an object either remains at rest or continues to move at a constant velocity, unless acted upon by an external force.´´ and yes this is copied from wikipedia. Irrelevant, anyways, basically this reads that an object will not change it's velocity, unless an external force is applied to it. Which means an object will stay at a constant speed, unless another force changes it. but if gravity and mass are not factors in this hypothetical room, then there is no force to apply to it. then all objects would technically stay still (at least the movies got that part right). But movies, let's take a series of episodes called ''heroes'' (disappointing last couple of seasons but the first two were awesome) as an example, in these series one of the protagonists is named ''Hero'' (ironic? yes), Hero is a japanese fella with the ability to manipulate time and space, this ability allows him to do a lot of things, but let's focus on stopping time. When Hero stops time everything around him is applicable to what I said above, except for him, he seems to be subjected to regular physics, even though I want to conclude that that's impossible , whenever hero touches an object it too seems to all of a sudden be subjcted to regular physics, this is not always the case though, from time to time he just gently pushes an object ,as it is flying, a centimeter to the right or left and there it stays completely still as if something was stopping it (note that hero does only pushes the object and does not attempt to stop it's movement). This got me thinking that Hero can be applied to Newton's first law (or rather the other way around), Hero is the external force applied to the object, but it still shouldn't happen like it does in the series, if newton is applied in this scenario and mass and gravity don't factor in, then as soon as Hero touches the object, the object having no mass and no counterforce to Hero, the object should fly off and never stop, but then there is another question, if the object has no other force applied to it and it has no mass, how fast will it travel? Or perhaps there is mass, but no gravity to act upon it, but most agree that mass 'causes gravity, so if there is no gravity there can not be mass?

Physics, right?