Jan 25, 2012
I’ve not yet seen the Aurora borealis, nor the Aurora australis, but they’re always on my mind. I am sure they’re amaaazing and wunderfuuul. This week a coronal mass ejection (CME) from the Sun stimulated the earth’s atmosphere and magnetic field to produce some marvellous lights that were even seen as far south as Northern England. There are plenty of photos on the web now and video …
Jan 24, 2012
A flavonoid compound found in fruit and vegetables, luteolin, was recently hailed as an anticancer supernutrient by the tabloid media. Aside from the fact that over-dosing on antioxidants could be detrimental to one’s front-line immune response to pathogens, the research was purely laboratory based and said nothing about whether or not luteolin might actually prevent bowel cancer. The compound has the chemical name 2-(3,4-dihydroxyphenyl)- 5,7-dihydroxy-4-chromenone and in …
Jan 23, 2012
Sometimes an old viral video needs another airing. In this video from about three years ago, a mixture of corn starch poured into a speaker cone is vibrated at 30 Hz using a signal generator and the video shot at 30 frames per second (coincident timing with the speaker frequency).
Corn starch is a non-Newtonian fluid, which means it does not behave in a “classical” way, it …
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