Category Archives: Other science

aka stamp collecting

This Will End the Controversy

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Yeah, right.

Tech puts JFK conspiracy theories to rest

“The question we were trying to answer is, given the spatter evidence in a vehicle, and knowing an individual was sitting at a particular location, is there something we could use to determine where the shot originated?” said Steve Schliebe, a blood spatter and trace evidence specialist with the Los Angeles Sheriff’s Department, who was part of the special investigation.

I imagine this will work just as well as a categorical denial of a coverup by a government official.

Illusions: Tricking the Eye or Fooling the Brain?

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Optical illusions: caused by eye or brain?

For the past 200 years, researchers have debated whether the illusion of motion in a static image is caused by mechanisms in the eye, in the brain, or by a combination of both. Because measuring these kinds of physiological responses is difficult, no study has successfully measured direct and tightly timed correlations between a kinetic illusion and a physiological precursor.

I've Seen Fire, and I've Seen Rainbow

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The Fire Rainbow: An Astonishing and Rare Marvel of Nature

To name it properly, a fire rainbow is a circumhorizontal arc. It is also known as a circumhorizon arc but whichever you chose, scientists (and aficionados) call it a CHA. It is given its name because it looks as if a rainbow has spontaneously combusted as it made its way across the sky.

Contrast with the circumzenithal arc (upside-down rainbow)

Zombie Water

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Mysterious ‘dead water’ effect caught on film

Research has already shown that dead water occurs when an area of water consists of two or more layers of water with different salinity, and hence density – for example, when fresh water from a melting glacier forms a relatively thin layer on top of denser seawater. Waves that form in the hidden layer can slow the boat with no visible trace.

Now French scientists recreating that scenario in a lab tank have revealed new detail of the phenomenon and even captured the effect on video. The work will help scientists to better understand dead water and the behaviour of stratified sea patches.