WE have been very interested to see the letter by Weil and Williams 1 and their remarks on the value of Day's work on chromatography in columns of powdered limestone and fuller's earth, and on ...

Exclusion chromatography can be used to separate molecules on the basis of size 1,2. The technique described here, which uses gel filtration to separate high-molecular-weight DNA from smaller ...

We all live with computers… but getting the most out of them… getting them to do what you need… can be kind of difficult. But if you can understand how they process things, a computer can be the most ...

Join Tom and Dominic as they discuss one of the most famous Greek myths of all time. Greek Myths: Zeus, King of the Gods (Part 1) What are the mythic origins of Zeus, King of the Olympians, and the ...