Recent content by thetrellan

Ammonia smells like urine. I've known this for decades. You don't need a black light, and in any case how would you tell the difference between different biological traces left around the house? Mostly food traces, I imagine.

uh, right here? For one.

I'm confused. I've been seeing discussion over the past month or so on the twin paradox saying that more time has passed for the traveling twin. But as I understand it https://en.wikipedia.org/wiki/Twin_paradox the traveling twin is supposed to have aged less. Shouldn't he, therefore, have...

I stand corrected. Actually Ohm's law helps us measure resistance. If I understand right, current flows everywhere, given equal resistance down all paths.

I'm no scientist. I had to Google the subject. But I think you're thinking of friction in general as something that happens between moving surfaces. That's only the case with kinetic friction. Static friction is between objects that are not moving in relation to each other. If they do move-...

I know birds are small, but it's my understand that electricity takes the shortest route, which in the bird's case won't take it through the head, but from foot to foot. That much power would probably just fry the whole body, but still. When I nearly electrocuted myself I had my hand in a...

Late bloomer. Story of my life.

I'm new to this forum, and want to say thanks for having me.

How about the crust of the Earth? As stated Schwarzschild radius. This is what I needed to understand. So basically any matter that collapses has an event horizon where the original diameter was, and nothing can escape crossing that. Thanks.

I think the operative word is "normally". Meaning it lacks to mass to grow the way a naturally formed BH would, and so would behave like any other subatomic particle. There is no event horizon, because it hasn't the mass to attract inescapably. In fact, isn't that why they dissipate? Not...

True. But why should such a thing grow, if what makes it do so is its intense gravity? There is no reason to think it would ever find the center of the planet, either, when not even light does this. The only particle I know of that can move through solid matter is the neutrino. I admit I...

Yeah, but aren't we talking something on a subatomic scale here? At that size, surely even something as exotic as a black hole would behave differently, perhaps even behave like subatomic particles do. Do things on that scale still react normally to gravity?

As an average guy with an average education, I have trouble buying all of this 'embedded in matter' stuff. Black holes are dangerous because of gravitational attraction, right? Its gravity pulls things in. Without enough mass, it should neither suck matter in nor be sucked to gravitational...

The loop is a problem because it violates causality, not because it goes on forever. It may seem perpetual, but really it's just non-linear. Unless you're the eight ball.