nice guy threads... i those guys went extinct years ago???

you won't make any friends knocking on beers. just sit back, wait for the waitress in the french maid outfit to come by and grab a beer friend

here's a pic of how mag should bring ours beers

Lol, I am fat, yes, and my balls are curved sometimes.

While what you said above is true, the fact remains that the combined mass as could be measured, by some instrument, of earth and the ball I lifted, remains constant, the ball and the Earth still gain mass, as their energy increases.

There is a loss of mass in my muscles, not biological, but physical, because they convert energy to lift the ball into work. The work becomes the energy of the ball and the earth, as they get distanced by a foot.

I was wrong. You are right. The balance is gained by the loss of mass in the object that performs the work to elevate en energy level.

This was well done. You get upgraded to a B+, but don`t tell the principal, please, because his principle is never to Bell the students.

Or was that never to ball the students? Darn it, I can`t remember.

I guess I just have to do both, and see which he bawls me out for.

The physicist: the forever experimenter.

This is exactly what I had thought for the longest time. It turns out that if you burn a match, and measure its mass before the fire and the particles that it becomes after the fire, the masses will not be equivalent.

This is even harder to get your mind wrapped around. If you elevate a poing-poing ball with your hand about a foot, then its weight will be smaller due to being farther away from Earth's centre of gravity, but its mass will increase because its energy state has been raised by lateral energy store.

To muddle the issue, the increase is mass is ONLY in relation to objects that are in earth's gravitational field.

You can say everything is in Earth's gravitational force, so the day is saved, righ? Well, right. The earth's mass ought to stay constant with this change, when you factor in the energy change of the poing-poing ball, right? Right!! Because i if you work out the math, the energy gain and mass gain will cancel each other out neatly for the objects that are in Earth's gravitational field.

But the fact remains, that, Canada for instance, burns up in chemical and other forms of energy usage, about 1 kg of matter every year.

This means the earth, on the average, loses about a metric tonne or two in mass, due to energy conversion by humans for their own purpose only, but without losing any material to drift into space in this process.

Those who worry about Earth becoming an anorexic planet in the Solar System sense: Please relax, in the knowledge that debris from space that come raining down on earth as meteorites, sunshine and other sun rays, radiowaves, pulsar-emitted gamma rays, space dust and Heralds of Angels, way more than offset this loss.

In fact, the earth has been gaining weight faster than I, although I have been no slouch in this area of human endeavour, either.

What does this mean to us in a practical level?

That each day you step on the bathroom scale, your shown weight does not correspond exactly to your mass the previous day; you will weigh in heavier, without having gained any mass (or without having gained "weight" as spoken on street-level colloquialisms), since the pull of earth's gravity is increasing constantly with time. Well not constnatly, but near emough for our measuring instrument, the kitchen or bathroom scale.

Don't go running to GoodWill with all your "before" clothes, though, having heard this. The weight you gain to this above downscribed effect, is 0.000739 picogramms per year, which can only be calculated, but not measured by any instrument or scale or balance, because the instrument would need to be accurate to21 significant digits, which is stupendously hard to even imagine.

The scientific principal you are actually dealing with is ...


"There is no free lunch".

The closest thing to free energy would probably be geothermal. The Earth produces heat from radioactivity which then turns into heat which is eventually radiated out into space.

Man's use of geothermal energy just reduces the amount of heat directly radiated into space by a very small percentage but he makes up for it in oh so many ways. Geothermal use has almost no effect on climate or the planet in general if done properly.

We can convert mass into energy and I think equation is as given by great scientist Einstein, E= mc2. Is reverse also true, ie can energy be converted into mass?