In 1960, parapsychologist Anthony Donald Cornell donned a bed sheet and attempted to scare an audience watching an X-rated film in a movie theater. Why? Cornell, a believer in ghosts himself, wanted to understand how people reacted during "apparitional experiences." Today at the BBC, University of Oxford experimental psychologist Matthew Tompkins explores Cornell's strange experiments and considers how his methods may have contributed to the study of "inattentional blindness." Indeed, the ghost in the movie theater experiment is not unlike Daniel Simons and Christopher Chablis's classic "Selective Attention Test" from 1999. If you're not aware of that experiment, the video below is a must-see. From the BBC:
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For Cornell, the experiment was another failure. None of the audience reported anything remotely paranormal. Many saw nothing unusual at all: 46% of the respondents had failed to notice the Experimental Apparition when Cornell first passed in front of the screen, and 32% remained completely unaware of it. Even the projectionist, whose job was to watch for anything unusual, reported that he had completely failed to notice the apparition. Those that did see ’something’ were not particularly accurate in their descriptions....
For me, these failures to see are by far the most exciting part of the experimental series. The pleasure of reading Cornell’s original reports, which were published in 1959 and 1960 in the Journal of the Society for Psychical Research, is that he writes in matter-of-fact academic prose. He dutifully reports numbers and exact quotes from participants, and walks the reader through the details of his experimental designs without a glimmer of apparent irony.
In this YouTube video, a fellow runs 10 amps through a cylinder of pencil graphite, burning his fingers (accidentally on purpose, I'd say).
He has a good article about graphite on his site:
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Graphite is highly conductive unlike diamond or wood. But it is conductive along the layers, not perpendicular to them. It has many different applications. Generally it is crushed into powder that can be used to make other components like battery rods, deposited traces on electronics and such.
But pencils are the most basic use of them. If you draw a thick line using pencil on paper and measure the resistance across it, you will see your line is conductive, and if you bring your probes closer on the paper over the line, the resistance gets lower, like a potentiometer.
Pneumatic tube systems — little canisters shot through a series of tubes via the power of compressed air — have been around since the 19th century when they were briefly popular as a way to quickly deliver mail in big cities. Today, they're probably most familiar from their use in drive-through banking, but the tubes also turn up at libraries (the one at the main branch of the New York Public Library is particularly steampunky), in scientific laboratories, and in hospitals.
Last month, I spent an inordinate amount of time in one Minneapolis area hospital, waiting for an induced labor to kick in. How do you entertain yourself between the insertion of the IV line and the beginning of serious contractions? Turns out, you go on a lot of short walks, you watch some TV, and (if you're lucky) you convince the nurses to let your husband "mail" his cell phone from the labor/delivery department to the post-natal department, using the hospital's pneumatic tube system. Read the rest
I'm loving the "Doing Stuff with Crazy Aunt Lindsey" series of hands-on science YouTube videos for kids. I can't find the host's full name on the YouTube page or her website, but she's a fantastic presence and so are the kids that appear with her. The result is a series of videos that are adorable, high-spirited, creative, and fun—full of great, simple projects that pack a surprising amount of science "oomph" behind them.
GE hosted a contest to make super-short science videos for Vine and the results feature some really clever, nifty little clips.
For hand towels, astronauts get those little vacuum-packed pucks that you kind of have to unravel into a towel. But what happens when you actually put the towels to use?
Two Nova Scotia high school students, Kendra Lemke and Meredith Faulkner, submitted this experiment to Canadian Space Agency and got to see astronaut Chris Hadfield actually test it out on the ISS. The results are seriously extraordinary and you need to see them.
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