The last couple of episodes of In Our Time on Radio 4 have been particularly good. The first was on Pragmatism, not a topic that I initially had much interest in until I discovered that the philosophy of pragmatism, especially that of Charles Peirce, is rather close to what I support – unsurprising, given that [...]
Entries Tagged as 'physics'
November 30th, 2005 · No Comments
February 20th, 2004 · 2 Comments
An excerpt from a BBC News story about a new Russian missile:
“Colonel Baluyevsky gave few details of the new missile which was tested on Wednesday, but said it was one that moved five times the speed of light.”
Wow, that’s some seriously good engineering they’ve got over there in Russia. If I lived in the US, [...]
March 10th, 2003 · No Comments
Just been to a very interesting talk by Prof. Hugh Mellor on the subject of the Multiverse. The idea* behind the Multiverse is that there are uncountable numbers of other universes out there that have slightly different properties to ours, owing to different initial conditions. We can never see any of the other universes in [...]
February 14th, 2003 · No Comments
Finally, I understand how gravity assists for spacecraft work now! (scroll to bottom of linked page)
Imagine a ball rolling down a hill. It gains speed rolling downhill, but then loses speed as it rolls up the next upslope. It’s hard to see how speed can be permanently gained this way. But now imagine that the [...]
January 14th, 2003 · No Comments
A major part of my project involves me taking recordings of a signal (in this case, electrochemical spikes from a neuron) and discriminating them from the noise inherent in the system…
September 24th, 2002 · 2 Comments
Ever heard the famous Einstein quote, “When a man sits with a pretty girl for an hour, it seems like a minute. But let him sit on a hot stove for a minute and it’s longer than any hour. That’s relativity.”? It was an abstract of a paper that’s now online, and if anything, the [...]
September 5th, 2002 · No Comments
My next shopping list: 15 straws, 60 paper clips and 30 rubber bands. After all, who wouldn’t want to make a tensegrity dodecahedron?
May 23rd, 2002 · Comments Off
Anecdote of the day: Physicist Ted Taylor used a parabolic mirror to light his cigarette with the flash from the Trinity nuclear bomb test (from Rich).
May 20th, 2002 · Comments Off
Crazy questions of the day: Would you be able to get air if you were riding a Segway on the Moon at top speed and hit a bump and could you pull off a ‘Mary Poppins’ by floating down from the top of a hotel with just an umbrella?
May 8th, 2002 · Comments Off
While perusing the manual for the new microwave* in the kitchen upstairs, I spotted a nifty way of making sure whether utensils are microwave-friendly (i.e. won’t blow up or give off sparks if you put them inside). All you do is to put the utensil in the microwave next to a bowl of water and [...]