Posts Tagged 'night sky'

Why did the Spanish flu kill so many people?

Why did the Spanish flu kill so many people?

The 1918 pandemic killed as many people in one year as the Black Death claimed in a century. But it generated surprisingly few headlines at the time. The pandemic’s casualties blurred together in the public mind with those who never returned from the great European bloodbath, which perhaps explains why Ernest Hemingway and F. Scott Fitzgerald, writing best-selling novels in the years immediately following the Spanish flu pandemic, never mentioned the disease even once. Moreover, the pandemic lacked a punchy name.

Methane: Blue flames and the green planet

Methane: Blue flames and the green planet

When the universe’s first- and fourth-most-abundant elements combine, the result is often a gas that, surprisingly, has recently cleaned up our air. It’s methane. Most folks call it natural gas. It’s also known as marsh gas and swamp gas, since it’s released by decomposing plants.

Equivocally equinoctial: The first moment of fall

Equivocally equinoctial: The first moment of fall

The Autumnal Equinox takes place on Friday afternoon, Sept. 22, at 4:02 p.m. At that moment, Earth will angle perfectly sideways to the Sun. Neither pole will tip toward or away from that favorite star of ours. And therefore, as the media never tire of reminding us, days and nights should theoretically be equal. We’ve often pointed out that this is never true.