physics

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Category archives for physics

Why Are Veins Blue?

When someone asks the question “why are veins blue?” a likely response is that they’re blue because the blood in veins is deoxygenated. While it’s true that venous blood vessels carry a lower concentration of oxygen than their arterial counterparts, this isn’t the reason for their blue appearance in your skin. Still, when someone invariably…

The arguably wacky premise behind a New York Times article this Saturday is that the Large Hadron Collider (LHR)–slated to be the world’s most impressive particle accelerator when it’s up and running later this year–could inadvertently produce an Earth-destroying black hole. Or, that’s at least what a couple of guys in Hawaii think, and they’re…

Celebrating Nikola Tesla

As you may have seen, the web is all abuzz today with news and commentary on the 150th birthday of the scientists and inventor Nikola Tesla. Tesla is probably best known as the inventor of the modern radio, but he had his hands in almost every area of electronics and magnetism research in his day.…

There are a number of approaches scientists take to get at the fundamental nature of life, and one of those is elucidating the chemical structures of the molecules that make life happen, particularly proteins, which are the workhorses of the cell. One of the two primary methods for determining these structures is nuclear magnetic resonance…