Science Homework

"Counting (or calculating) the number of atoms in 28.0855 g of silicon is one way of determining the Avogadro constant, N_A, and a way which is currently receiving a lot of attention (see below) although, as of the 2006 CODATA values of the physical constants, it is not the most accurate. It is only a method of determining N_A because it is known by other means that 28.0855 g of silicon is equivalent to one mole. Those other means are:

• the very accurate determination of the ratios of the masses of each of the three silicon nuclides to the mass of an atom of carbon-12, in such a way that it is known that a silicon-28 atom is [27.976 926 5327(20)/12] times as massive as a carbon-12 atom;
• the determination of the isotopic abundance of silicon in the samples used to make the measurements, allowing the calculation of the atomic weight of silicon in each individual sample;
• the definition of 12 g of carbon-12 atoms to be equivalent to one mole."

High Fashion

High Fashion is overrated. To exemplify my point, I give you Moncler Grenoble with images and explanations:

Russian Assassin.

Closet Homosexual.

Glorified Burglar.

Alien.

Poetry

Lumitectura from barno on Vimeo.

Spread of Cancer Discovered

"Reporting in Nature Cell Biology, researchers describe the discovery of a specific protein called disabled-2 (Dab2) that switches on the process that releases cancer cells from the original tumor and allows the cells to spread and develop into new tumors in other parts of the body. The process called epithelial-mesenchymal transdifferientiation (EMT) has been known to play a role in releasing cells (epithelial cells) on the surface of the solid tumor and transforming them into transient mesenchymal cell: cells with the ability to start to grow a new tumor."

- Science Daily

Please Hold in The Light

At least 25 killed in Belgian train accident this morning. No official cause for the accident has yet been given, but it is believed to have been caused when one train ran a red light and track change, and rear-ended another train using the track.

And Here's The News