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Monthly Archives: February 2010
Removing red wine from carpet using salt
Aim/Objective: To prevent red wine from staining a carpet. Hypothesis: The hygroscopic properties of salt will cause it to draw up and remove red wine from the carpet before the red wine has time to settle in and stain. Basis for hypothesis: … Continue reading
Tagged experiment, wine
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Dice nuclei
Following on from the ETAW post about Radioactive Dice, I started thinking about a special class of nucleus that I’m calling “dice nuclei”: a die nucleus is one that has the same decay constant as a particular die [1]. In the … Continue reading
Tagged dice, radioactivity
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ETAW: Radioactive Dice
This is number 2 in an irregular series of Experiments That Actually Work [previously]. Using dice to simulate unstable (radioactive) nuclei is a common physics experiment. In the same way that an unstable nucleus has a chance of decaying every second, … Continue reading
Tagged ETAW, experiment, practical, radioactivity
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20 years ago today
4545 days after launch, on 14th February 1990, at a distance of six billion kilometres from Earth, the Voyager 1 probe turned its camera on the solar system for a “family portrait”. One of the 60 individual photographs taken became one … Continue reading
Tagged photography, space, valentines
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What’s up with the Sun?
The Sun (the big floaty fireball, not the awful “newspaper”) has been in the news lately as it’s been predicted that the Sun may interfere with the 2012 Olympics. It’s been suggested that solar flares, ejections of material from the … Continue reading
State of the Union
“[T]o create more of these clean energy jobs, we need more production, more efficiency, more incentives. And that means building a new generation of safe, clean nuclear power plants in this country.” — Barack Obama, State of the Union Address, January … Continue reading
Tagged nuclear, speech
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