All posts by Nicholas Gerbis

Hypersonic: Don’t believe the hype

Falcon program’s Hypersonic Cruise Vehicle
The DARPA Falcon Project’s Hypersonic Cruise Vehicle

Imagine a Mach-20 aircraft capable of flying coast to coast in less time than it takes a passenger to clear security; now imagine the jet lag to follow. If the idea still sounds appealing, bear in mind that the most recent attempt at such a plane flew right out of its own skin before ditching into the Pacific.

Welcome to the world of hypersonic flight.

Of course, that was a military weapons platform; contrary to what some aircraft manufacturers’ flacks would have us believe, passenger planes are likely to remain subsonic or supersonic for the foreseeable future – and for good reason.

Could You Commute From New York to Los Angeles in 12 Minutes?

Daydreams about night things (stars, that is)

Orionid, Milky Way, Zodiac light, Venus
Photo by Brocken Inaglory

From antiquity to the present day, everyone from philosophers to scientists to spinners of yarns have claimed that stars can be seen during broad daylight, provided you look at them from the bottoms of mine shafts, tall chimneys, coal pits or cisterns. Folk tales have also described people spotting distant suns in light reflected in dark lake bottoms or deep wells.

Is there any truth to these tales, or are these well-wishers merely moonstruck?

Can You See Stars During the Daytime?

The scandalous sneeze

Fred Ott's Sneeze (film by William K.L. Dickson)
Fred Ott’s Sneeze

The 1894 kinetoscope of Fred Ott sneezing after inhaling a pinch of snuff, taken by Thomas Edison’s laboratory, was one of the first human acts ever committed to film. If you believe the internet rumors concerning the relationship between sneezing and sex, it might also have been the first movie orgasm.

No wonder nasal snuff was so popular for hundreds of years – and small wonder, too, that Pope Urban VIII threatened to excommunicate Catholics who took snuff in church….

Is Sneezing Really Like an Orgasm?

Light bulbs: They don’t make ‘em like they used to

Old light bulb
Photo by Jane023

Weekend circulars and hardware store ads tout “long-lasting” light bulbs that burn for 10,000-20,000 hours, but they can’t hold a candle to the subject of this story: a bulb that has shed continuous light for over a century.

What’s the Longest Burning Light Bulb?

Facial expressions: Feel the burn

Smile
Photo by Zitona

We’ve all received the emails, posts and tweets from well-meaning friends: “It takes fewer muscles to smile than to frown. Why tire yourself?” But is it true? Has anyone actually tallied up the facial forces involved?  If so, did they account for the full range of smiles we express when amused, contented, excited, proud, satisfied or relieved? And is it true that the very act of smiling can make us happy?

Does it Take More Muscles to Frown than Smile?