Yeah, those of us who bothered to look it up know this. The Swiss geezer noticed that some fluffy airborne seeds stuck to certain things. Looked under the microscope to see why, and the rest is history.
Yeah, those of us who bothered to look it up know this. The Swiss geezer noticed that some fluffy airborne seeds stuck to certain things. Looked under the microscope to see why, and the rest is history.
If you're a Hunter S Thompson fan Barstow sort of rings a bell.
Jonathan
Bollocks.
At first Light-emitting diodes were very expensive, some US$200 per piece. Because of that, they were used as indicators only in highly professional laboratory equipment. Fairchild Semiconductors succeeded in
1970s to reduce cost of individual LED to 5 cents by using planar process in production of semiconductor chips for light emitting diodes. By using innovative methods of packaging and a planar process of chip production, Fairchild made LED into a commercial product with variety of uses.
I've been to Barstow.
It rather feels like you are on the moon already
...
Two problems with that theory. First, ICBM development was not secret, so could be financed through the normal military budget. Second, the order is wrong - NASA used existing ICBMs as the basis for its space rockets.
You need to think of really secret projects, like the SR-71 Blackbird, Project Pluto or some of the CIA operations in Vietnam and Laos.
Like schools [1] sometimes do?
I remembered that (not in detail) just after I posted. Yes, pretty good. We had to make do with radar.
But doesn?t explain how they managed to get the fake radio transmissions into the tracking stations in Australia and fool those manning those that they were coming in through the dish in Parkes etc which was currently pointing at the moon.
Oh. I don't believe the moon landings were faked,. Hard to fake on that scale.
If you had one really, really good teacher in your entire time at school, you should regard yourself as fortunate.
I did. My O level geography teacher and my A level Maths teacher were outstanding.
He was not outstanding IMHO for his geography lessons (a piss easy O level subject to pass IMHO) but for his after school activities. I was in the school chess team he ran and we used to get some outstanding results against much bigger schools. He used to take us to the pub after a match and buy us half a pint.
In primary school we had a very good teacher for maths - I'm not sure how many other primary schools were measuring heights of local buildings with a theodolite!
At 'O'- level we had an excellent physics teacher (extremely strict, but good at keeping your attention and interest, while also clearly getting the point over). Admittedly he was teaching the top set, but even so, for his whole class to get grade A back in the mid-80s (before rampant grade inflation) was an achievement. Unfortunately he was not rota'd to teach A-level the following year and the teacher we got just droned on in a monotone - switching physics from being my favourite subject to being 80 minutes at a time of counting the seagulls on the football pitch :(
SteveW
I do wonder their motives. There is usually a bigger picture behind such investment.
Going back to telescopes:
There's me thinking it was Henry Joseph Round who saw yellow light from carborundum in 1907?
That was an interesting link.
Apparently, on take-off his main parachute snagged on the launch ramp and was damaged, then his emergency chute failed to open.
But he didn't make an LED he discovered the effect which was the point. Electroluminesence was used in the Apollo but they weren't LEDs' designed for space which was the original claim made. That early light was far to dim to be of any use.
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