Anarchaus

I could see how dragons COULD exsist: They have long necks and long tails for balance, and they have a thin body. The look like a t rex thats been stretched out, they have ornimental spikes and horns on their heads and necks, and a cool axe like tail(like draco from that movie, or that spiky dinosaur thing) and they have huge wings that lock into place and they run fast, and they glide over the ground, so they can out run any thing around them, and they can make sharpe turns by twisting their necks and tails, as well as moving their wings like aerolons on airplanes. They would look like the ones on reign of fire, except the don't fly(too heavy, consumes too much food) , they glide and they don't eat ash( who came up with that anyway?).

Igot a perpetual motion machine, spin a top in deep, deep space(out side the galactic neighboorhood) it will keep going, and going, and going... beat that energizer bunny. so that is perpetual, but i see no use for it. And, all the "perpetual" motion machines, had some sort of magnets along with it, so there not perpetual.

You see this in stars too, a supergiant is massive, but it could float in water if you had a huge tub. But if you have a white dwarf, which is around 1 solar mass, its about the size of earth, and it's pretty solid, the g well at the surface is real steep, the excape velocity is around 6000 km/s. Compared with a measily 11 km/s at the earths surface(6000 km). A neutron star(20 km across) is about 150,000 km/s, and a stellar black hole(5-? km), at the event horizon is of course 300,000 km/s at any size. But a star, like our sun(600,000 km) is 300km/s

true, but not neccisarily, a large star has more radiation pressure, so earth like planets would form farther out, because the dust is blown outwards, it all has to do with the ecosphere of the solar system, a earth sized planet(+ or -1.5 earth mass) that is warm enough to have liquid water is good enough to have life, and if it doesn't its good enough for us to move on in. The bigger the star, the farther out the planet has to be to support life(not too hot, not too cold). Considering that all the solar systems in the universe rely on more or less the same process in forming, i have little doubt that we will eventually find earth like planets. now about those aliens....

alright, thanks all.

a depressed hooker on cocaine?, oh wait never mind..

well, lets say that you died, Oh well, Ill just go to the store and get me a new person, no biggie. se what i mean, i takes away your individuality, it makes you replacable, and then it turns people into a comodity, thats why its wrong.

I was thinking, why did the European nations advance so fast in comparison with other regions of the world? or did other regions have their time in the sun that is all but forgotten now?

I thought that if you could travel faster than light, and you hit the barrier between space time, and what ever the hecks out side, you would just magically appear at the exact opposite side of the universe, like a classic 2-D arcade game.

im just wondering about this mystery molocule.

Oh,so your saying, that foreign factors actually cause the mutations, such as the enviroment, but it relies on random sections of the DNA to be changed to actually benifet the organism. So if a microbe is in a foreign enviroment, and it happens to be cold. The enviroment damages the DNA, and the microbe trys to repair. And lets say by chance, the part of the DNA required to regulate the metabolism is damaged, and the mutation causes it to speed up then the microbe can survive to reproduce? Is that how evolution works?

Hi I was wondering, why do creatures have to evolve by random mutation? The odds of a random mutation actually occuring are low, and the odds of it actually helping the organism in a certain enviroment are exceptionally low. There must be some mechanism that causes the actual mutation, so why can't it be due to a change in the enviroment? would that be enough to alter the organisms genes?

Yes I can, you think too much.

The sun spits out tonnes of protons(hydrogen) and tonnes of alpha particles(helium) into space, as well as solar flares corona mass ejections, but, as the previous post said, little, of the suns mass has been lost, only during the T-tauri stage of stars, and their deaths, do they remove sinifigantly large amounts of their mass(either by the last death throes of small sun like stars by puffing their outer layers, or by the violent supernovae of more massive stars).

I know absolutly nothing about thermo luminescence dating, but i know a little about C14 dating: Carbon 14 is caused by the transformation of ordinary nitrogen(N14) by cosmic rays. The atomic mass stays unchanged, but a proton absorbs a electron and transforms into a neutron, the elemental number is shifted one the the left(or one less proton) Which, by coiencidence is carbon. Ordinary carbon has a atomic mass of 12.01, carbon 14 is, well, 14. The process is called electron capture/positron emmision, since no mass is lost/gained. Carbon 14 has a half life of about 5351 or so years(im not too sure). Lets just say 5000 then. The C14 dating is reliable up to 50000 years, after that our techniques are too primitive to be reliable, so they cannot be used after that amount of time. Plants absorb the C14 though photosynthisis, with out any care if its not ordinary carbon, then it can be eaten by other animals and the C14 is moved through the ecosystem. A minor problem with C14 dating is that if a microbe absorbs C14 and it dies at the ocean floor, and stays there for thousands of years, and then is reabsorbed. It can go back into the ecosystem, but the C14 has decayed, so if the plants/animals that ate the microbes with little C14 in them, scientists that find These same organisms will get a faulty reading, it will say that the specimen is much older that it really is(this is rare). Hope i helped Anarchaus.