Recent content by Grizzled

More likely it's simply the way even elementary physics is [not] taught in schools today. On the other hand, that's the propupsion UFOs use, haven't you heard?

I thought I explained it above. In detail. The platform the man stands on must compensate (with a spring, counterbalance, whatever) not just for the gravity but also for the inertia of that ball flying in a circle. But really... I repeat myself.

Krrrhm, a small correction folks. I submit that if the scale in questison is properly constructed, it will register MORE than 100kg. You all forgot horizontal force applied to the scale! What prevents that ball from flyng away? String tension. Where does THAT come from? Well, via the man and...

We can and do use other coatings. Palladium for instance is quite popular. It's just an issue of required properties (chemical, electric) vs price.

Not only can, they should. With the usual caveat of course - IF we figured them out correctly. However, since you refer to the Higgs as currently defined by theory then, within that same theory, the answer is - yep.

Well, thr first very obvious objection is the need for the two propulsion systems on board - for wheels/road and for the rail. Half of them is unused at any given time but needs to be lugged around. That means extra weight & fuel. ... and size which kinda contradicts the original idea of trying...

Both are limited to subatomic distances. Not much good for real life communication. Theoretically, you may be able (maybe!) to use them for electronics if and when you start manipulating single atoms (we are not too far away from that by now). But even that is doubtful, even single atoms are...

I presume terraforming in this context means turning a planet, planetoid, ateroid etc into a place where humans or, at least, some higher-order Earth animals can survive unprotected for indefinite period of time. If so, first you would need a force of gravity similar to what we have here. It's...

But your laser beam can be blocked by a planet or a dust cloud. It can also be bent by gravity. And it is very narrow (directional). In contrast, gravitational waves for instance allow broadcast type of transmissions and both gravity and neutrinos are much better in negotating any obstacles and...

This is a very good and correct explanation Deveno but I'm afraid that, without saying so :-), you are moving into the complex numbers field. Might be a bit early for a student still struggling with negatives.

In addition, there is a stream or jet of stars at the outer edges of the Milky Way which, because of their unusual orbits, are thought to be the remnants of a past collision like that. Other galaxies which we could study in enough detail also often show similar feature. In short - no need to...

You might be interested to know that it looks like our galaxy is right now colliding with the dwarf Magellanic Clouds galaxies. While they are relative small, that smallness is only relative. They used to be considered satellites however, in 2008 Australian astronomers established two facts 1...

Drakkith, I can't help it if some people are so easily confused. Perhaps they should study a bit? I also can't help it if all they want are some pretty pictures which they (for some mysterious reason) insist on posting over and over again. At least you agree that I am "technically"...

What -I- don't see is how this pretty picture indicates a changed orbit. What -you- don't see is the fact that orbits are never the same perfect ellipses. Doesn't happen. So, what your picture shows is just a normsl, pretty ordinary orbit. Perhaps you should make distinction between the words...

Well, perhaps I misunderstood your question. (I'm actually inclined to think so). But the basic fact remains that the question "how much did the Earth gravity changed the course of that asteroid" is pretty much meaningless. It didn't. In any shape, size or form UNLESS you mean how it shaped...