In the United States, cholesterol levels are calculated in milligrams of cholesterol for each deciliter of blood. A result of under 200 mg per dL (5.2 mmol/L) is desirable. A level somewhere between 200 to 239 mg per dL (5.2 and 6.2 mmol/L) is within the edge line of high-risk class.
Quarks are one type of matter particle. Most of the matter we see around us is made from protons and neutrons, which are composed of quarks. There are six quarks, but physicists usually talk about them in terms of three pairs: up/down, charm/strange, and top/bottom.(Also, for each of these quarks, there is a corresponding antiquark.) Be glad that quarks have such silly names -- it makes them easier to remember!Quarks have the unusual characteristic of having a fractional electric charge, unlike the proton and electron, which have integer charges of +1 and -1 respectively.here are six quarks, but physicists usually talk about them in terms of three pairs: up/down, charm/strange, and top/bottom. (Also, for each of these quarks, there is a corresponding antiquark.) Be glad that quarks have such silly names -- it makes them easier to remember!
there are six kinds of quarks up quarks down quarks strange quarks charm quarks bottom quarks and top quarks their names don t really mean anything just that they are different kinds of quarks a proton is made of two up quarks and a down quark and a neutron is made of two down quarks and an up quarka force called the strong nuclear force holds the quarks together up quarks have a little bit of mass but most of the mass of a proton comes from the strong nuclear force itself rather than from the quarksheir names don t really mean anything just that they are different kinds of quarks a proton is made of two up quarks and a down quark and a neutron is made of two down quarks and an up quark