Cut Definition and 256 Threads

hello everybody! what does it mean when a gel you use in gel filtration has a "cut off 2.000 daltons" ? i have looked for the answer, but can't find it. hopes for replies! many thanks!

If I cut a ball of mercury with a knife it forms into other balls why is this

a weight is attatched midway to a thread which hangs vertically from a ceiling.another weight is attatched to the bottom end of the thread.where along the thread will it be most easy to cut and why?

FOr all you smokers out there who buy your tabacco in bags, do you know what the difference is? FOr those who aren't too familiar, when you buy tabacco in the little bags (for rolling) you have a choice of 100% cut, 90% and so on. It supposedly rolls 100% more cigarettes, 90% more, whatever...

Van Gogh and Gauguin were sharing a small room in Arles, France. The evening before the ear cutting incident they were at a Cafe drinking absinthe, a known epileptogenic drink that is now illegal. For no apparent reason Van Gogh picked up his absinthe and threw it at Gauguin. The next day he...

The son of a rich bullion merchant left home on the death of his father. All he had with him was a gold chain that consisted of 123 links. He rented a place in the city center with a shop at the lower level and an apartment at the upper level. He was required to pay every week one link of the...