I've just read a review of what seems to be a rather novel game called "Let's Dance Europe", which comes with a floor mat with ten touch sensors on it (the aim being to hit them in a particular order as you "dance"). It might possible to hack it to work with something other than the game - it plugs into a PS/2 keyboard port. The manufacturer's site is here.
There is a worldwide network of "DNA repositories" for plants, set up to preserve genetic diversity. Different insitutions around the world have responsibility for different families of plants.
Plants are much easier to bank in this way than animals, becuase:
a) they produce seeds, which contain all the information required, and are nice and small.
b) most seeds last for a long time.
You can freeze about 80% of species' seeds (orthodox seeds), and they'll be good for about 15 years. After 15 years, you just defrost them, grow them, and collect the new seeds to re-freeze, for another 15 years. The problem lies in the other 20% of species (recalcitrant seeds), whose seeds you can't freeze. These are preserved by growing them, collecting the seeds, and growing those, in a continuous cycle.
Preserving genetic diversity in this way is important, especially from the point of view of discovering new medicines, and genetic engineering.
The alpha and beta forms of a hexose sugar can have the same chirality - in your example, they do (D). Alpha and beta denotes which "shape" the molecule is - a glucose ring can exist in two forms, which look like a "boat" and a "chair" respectively, depending on which way you "fold" the straight "glucose" molecule
You are right about the direction the molecules rotate light - D = dextro = right = clockwise, L = laevo = left = anticlockwise (counterclockwise for all you Americans).
Modular forms are strange four-dimensional things.
The Taniyama-Shimura conjecture was that every elliptic curve was a modular form. This implied that Fermat's Last Theorem was true in a roundabout way. Wiles proved Taniyama-Shimura and thus Fermat.
Slashdot Mirror
She was given a peerage last summer too - now Baroness Greenfield.
ATP isn't a protein at all. The "motor protein" they're talking about is kinesin. The original article's got it right, of course.
I've just read a review of what seems to be a rather novel game called "Let's Dance Europe", which comes with a floor mat with ten touch sensors on it (the aim being to hit them in a particular order as you "dance"). It might possible to hack it to work with something other than the game - it plugs into a PS/2 keyboard port. The manufacturer's site is here.
There is a worldwide network of "DNA repositories" for plants, set up to preserve genetic diversity. Different insitutions around the world have responsibility for different families of plants.
Plants are much easier to bank in this way than animals, becuase:
a) they produce seeds, which contain all the information required, and are nice and small.
b) most seeds last for a long time.
You can freeze about 80% of species' seeds (orthodox seeds), and they'll be good for about 15 years. After 15 years, you just defrost them, grow them, and collect the new seeds to re-freeze, for another 15 years. The problem lies in the other 20% of species (recalcitrant seeds), whose seeds you can't freeze. These are preserved by growing them, collecting the seeds, and growing those, in a continuous cycle.
Preserving genetic diversity in this way is important, especially from the point of view of discovering new medicines, and genetic engineering.
"Give computer makers more flexibility in configuring their systems and in selling and promoting non-Microsoft software"
(from this BBC News article)
Doesn't look that way to me.
Nice explanation, but one thing...
The alpha and beta forms of a hexose sugar can have the same chirality - in your example, they do (D). Alpha and beta denotes which "shape" the molecule is - a glucose ring can exist in two forms, which look like a "boat" and a "chair" respectively, depending on which way you "fold" the straight "glucose" molecule
You are right about the direction the molecules rotate light - D = dextro = right = clockwise, L = laevo = left = anticlockwise (counterclockwise for all you Americans).
Modular forms are strange four-dimensional things.
The Taniyama-Shimura conjecture was that every elliptic curve was a modular form. This implied that Fermat's Last Theorem was true in a roundabout way. Wiles proved Taniyama-Shimura and thus Fermat.
um, wouldn't that be a net loss of 1 litre of water each time? if that were true we'd all just shrivel up.
The first images from this are here.
The idea is that it is set up with all the possible combinations, and then it works out which ones are "right" by itself - so it is a computer.