Recent content by Amphi

I don't understand how these tasers that have 50,000V only produce a very low amperage. According to Ohm's law that should kill you. Voltage divided by the persons resistance (Ohms). Getting shocked by static electricity has 5000V, but doesn't kill you because there is no circuit involved, just...

Hi, I'm having a little hardship with visualizing this. If I touch a 12V car battery, it has the potential to kill me. Probably won't, but anyway that's what they say. However, a Taser, with 50 000V sends very little current through a body. What gives? My resistance never changed. How can the...

hmmmm, so, if one believes relativity (David, Doc Al, man you guys!) Okay, so if one believes in relativity, then being a light beam the whole universe shrinks down to one single little point? Being a light beam, you are everywhere at the same time. Ofcourse not for an outside observer (a true...

I have heard of the idea of...wait let me make sure that, since our universe is so "BIG" that the chances of other life forms it pretty damn big. According to the Drake formula we have about 2000 other civilizations in out universe. However, the Drake formula basis on our evolvement toward...

Isn't mass changed to energy in the sun through the process of fusion? Or a nuclear reactor? Or is that all that something different?

Okay, I can understand traveling towards light and observing "c". Because of time dilation caused by me being in a very different frame than the light. Now though, again, very sorry here, you guys must be like "ohhhh not again!" Let's say a light beam is sent chasing after another light beam (...

Okay, one more situation to hopefully finally grab the concept. If I am in a spaceship leaving Earth at the speed-of-light, 300,000km/s, right? And sometime which would be somewhere ( because it takes time to cover distance,right?) A beam of light is sent towards me from earth. Now, that beam...

Man,...I don't know, hmm, so the light ray will pass me, because the distance between me and Earth shrinks and it has more time to cover the distance? Am I starting to get it? But what about me? doesnt' my space-time change too? What if I reach the speed of light?

hmm, maybe I, no, let's say I'm traveling 150,000km/s towards "B". Then being in my frame of reference it would seem like "B" is coming towards me at 450,000km/s. That isn't what SR states about light's constant. I just can't get the classical physics out of the back of my head. It doesn't click.

Hey, I feel like pulling the hair off of my head right about now. As I understand, and as it is posted in SR, the speed of light stays the same regardless of which frame of reference one is...well, okay. So, if I were to be in motion towards a light source or away from a light source. The...