Skye

And the timing and strength of the waves at different points can give a bit of an idea of what's down there.

Vitamins are things our bodies need which they can't synthesise (vital minerals or something). I don't think vitamin C has any direct effect on the 'flu or a cold though, but if you are normally deficient you would benefit by taking the tablets. 1) Flu shots are a type of immunisation. They usually work by injecting either viruses that have been treated with heat to make them inactive, or synthesised proteins. Either way your immune system mounts a small immune response, and 'remembers' the particular antigens (proteins from the coat of the virus) for later. This lets your immune system respond faster when an actual infection occurs. You need to do this before the infection so you're body is prepared. 2) The best thing is to stay warm I think, that's why they call it a cold, you get it when you're cold. Soup is warm. By the way, there are anti-viral drugs, some of which are designed for the 'flu but, I don't know how effective (or cheap!) they are.

Science on it's own doesn't *do* much, it's the applications that solve and cause problems.

None that I know of... Anabolic reactions are endothermic so they require energy, but in cells they get it mostly by breaking down ATP which actually releases some heat. Also enzymes operate faster at higher temps (which is the point of refrigeration, it slows ripening by slowing catalysis down) so even if an enzyme lowered the temp it would slow it's own reaction down, so it would be self defeating.

Could it be used for anything productive ? Like say, manufacturing identical small componants.

Sorry, my mistake.

I guess it's because they are within the rising column of hot air created by the fire. Probably thin paper would do the trick. When sugar cane is burnt, which is done before it's harvested, the ashes get lifted into the air and carried for miles around. Not much fun when you live nearby and have washing on the line

You might be able to get some protein expression happening but it wouldn't really be 'life', in a biological context, because I doubt it would replicate, metabolise, grow, etc.

I like the one by Bruice.

Just because having something would be helpful to your survival doesnt mean that mutations will provide it. Eventually anything is possible, but one of those possibilities is death, so don't place your bets on high odds.

Well till Glider gets here I'd guess you did some damage but the peripheral nervous system usually heals well so it should be gone soon.

AFAIK drugs are defined as substances taken into the body that aren't necessary for normal functioning. Air is necessary for normal functioning, so air is not a drug. Same argument for food or water.

The reaction was what we were told was used to create a reactant used in a recent prac, so I assume it's possible though I haven't done it myself. This is something like how it was explained if you are interested... The HCl starts off by protonating the O, i.e. donating a hydrogen ion. Then the Cl displaces the whole protonated hydroxide and water is released C2H5OH + HCl -> C2H5O+H + Cl -> C2H5Cl + H2O The positive sign following the O should be above it, it denotes a protonated O. It's not C2H5O + H. You end up with a nicely reactive product, these kinds of things are then used commercially to synthesise larger compounds by substituting the Cl for a carbon chain.

Kewl. Seems like they have put up a fair bit of the course material.

Here's another thing I thought of while reading this thread... What about the OH group being substituted by a Cl by the HCl in your stomach?

At least you're both funny

I don't think it's the worthiness of depression, as much as the worthiness of therapy or drugs in treating a depression caused by a persons circumstances.

If I understand you correctly, i.e. drinking the water from 100,000 year old ice, you wouldn't get alot of carbon from it, so it wouldn't really affect radiocarbon dating. On the other hand, I think it's possible that an organism living off oil that is buried underground could be dated as close to the age of the oil, because it's source of carbon would be the oil. Course the carbon-14 decays relatively fast so that alot of oil supplies wouldn't be accurately measured.

It's based on the decay of carbon-14 to carbon-12. Most of the Earth's carbon-14 is created when electromagnetic radiation from the sun hits the carbon in carbon dioxide within the atmosphere. This is then taken in by plants during photosynthesis and by animals when they eat plants. When an animal or plant dies, they stop taking in any more carbon of any kind, but the carbon-14 continues to decay to carbon-12, meaning the percentage of carbon-14 falls as time goes by.

Well you could descibe ion concentrations in terms of either H or OH. pH is the thing people use by convention, but pOH is equally valid, you just rearrange the equation. Anyhoo acid rain begins with sulphur dioxide that is released into the atmosphere from certain types of industrial processes. The sulphur dioxide reacts with oxygen in the air to form sulphur trioxide, then the sulphur trioxide reacts with water in the air to form sulphuric acid.

Science probably wouldn't all fall down if something basic like atoms were found to not exist. We don't know they exist, the atomic theory is really just something that lets us conceptualise the way the universe appears to behave. If the universe continues to act the way it did to justify the atomic theory then the models we have built on it wouldn't be any less valid than they are today, untill something better came along.

Presumably if you were fairly deep under water it would form. Maybe scuba down deep with a bottle of liquid nitrogen and open it up.

Meet people and party, get out and exercise, make attainable goals and strive for them, and take a break from all of it every now and again.

NavajoEverclear: Plants don't crap because their roots and leaves usually only take up chemicals they need. Some plants do excrete excess salt though, mangrove plants leaves excrete quite alot of it, you can see little crystals all over them. We breath out carbon dioxide because it takes too much energy for it to be worth it for us to build large organic molecules from it. We just go around eating other things that have done the work, like plants, or things that have already ate them, like cows.

It was probably all the other people already in Africa that also had pointy sticks.