Top Eleven: Henry Cavendish

Next up in the Top Eleven is an experiment whose basic technique is still in use today. Who: Henry Cavendish (1731-1810), a British scientist who made a number of discoveries in physics and chemistry, but received credit for very few of them. When: 1797. What: Cavendish’s modern claim to fame is the torsion pendulum experiment,… Continue reading Top Eleven: Henry Cavendish

A New Life Awaits You in the Off-World Colonies

Some interesting astrophysics news this week, from Nature: scientists have used “microlensing” to discover a extrasolar planet only five times Earth’s mass: Planet OGLE-2005-BLG-390Lb looks much more like home. It lies about 390 million kilometres from its star: if it were inside our Solar System, the planet would sit between Mars and Jupiter. It takes… Continue reading A New Life Awaits You in the Off-World Colonies

Top Eleven: Isaac Newton

Third in the Top Eleven is Sir Isaac Newton, who squeaks in with two nominations for two different experiments. Who: Isaac Newton (1642-1727), famous English physicist, mathematician, alchemist, Master of the Mint, and Neal Stephenson character. When: Newton was secretive and reluctant to publish anything, so it’s sort of hard to assign dates. I’m going… Continue reading Top Eleven: Isaac Newton

Top Eleven: Ole Roemer

The second in the Top Eleven is the first quantitative measurement of the speed of light, by Ole Christensen Roemer (whose last name ought to contain an o-with-a-slash-through-it, that I’ve rendered as an “oe”). Who: Ole Roemer (1644-1710), a Danish astronomer. When: The crucial observations were made around 1675. What: Roemer made careful observations of… Continue reading Top Eleven: Ole Roemer

Top Eleven: Galileo Galilei

The first and oldest of the experiments in the Top Eleven is actually a two-fer: Galileo Galilei is nominated both for the discovery of the moons of Jupiter, and for his experiments on the motion of falling objects. Who: Galileo Galilei (1564-1642), the great Italian physicist, astronomer, and general Renaissance man. When: He’s known to… Continue reading Top Eleven: Galileo Galilei

Physics Face

Thursday night, I needed to work late, so rather than upset the dog by going home for dinner, and then leaving, I went for sushi at a local restaurant. I had a very pleasant meal, which I spent reading through the first few chapters of the textbook I plan to use for my Quantum Optics… Continue reading Physics Face

Great Experiment Round-Up

It’s depressingly typical of my life that we would get BoingBoing-ed on a weekend when I’m visiting the in-laws… I’ve gotten a bunch of responses to my earlier request for “Great Experiments” in other areas of science, and I thought I’d collect the links in one post (many of them show up as TrackBacks to… Continue reading Great Experiment Round-Up

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