Yumeji

I remember reading an experiment on this, though 5614 has already accurately provided the answer, that the folowing conditions will yield to greater photosynthesis:

- Position of bulb [closer > farther]

- Intensity of bulb [higher watts > lower watts]

- Colour [red bulb > green bulb]

All of which are fairly obvious when you follow the basic principles of photosynthesis.

I don't get the problem...Take egg samples from 12 women, put it on a colorful spinner. Take sperm samples from 12 guys, put it on a colorful spinner. Spin both spinners and pair them off. Make embryos. Get stem cells. Done. Where's the controversy?

It's not that easy. You still have the controvery of taking a life, which is a big no-no according to religion and the Universal Declaration of Human Rights [article 3]. I believe it's said that once fertilization occurs [involving an egg & sperm], that is when life begins.

Hence why researchers are using other methods such as growing stem cells from human skin or from 2 eggs. They're even exploring potential stem cells from adults [although embryos are the most versatile type].

Seltzer bottle would do the trick--mainly it would just recarbonate it though, not preseve the carbon that was initially there to begin with.

I'd define life as the time frame for which something is in existance. Assuming you're not looking for the characteristics that describe living organisms.