All those acronyms, and they never got as far as Studs Not On Top?
245 posts • joined 20 Apr 2007
The RN's Submarine Service was exploiting the thermocline during the Great War; during the Dardanelles campaign, it was possible to park one's boat at the boundary, because it floated on the cold water below but sank in the warmer water above, although there is one instance recorded of the crew having done this at night and woken in the morning to find their boat was now on the roof, ie at the surface
Or, indeed, Bill Penney. Who wanted to be remembered for his contribution to science, and not for his specific contributions to the Manhattan Project and to its British successors.
And who wouldn't want a man named Penn[e]y on the £50?
This is also the man who demanded, and got, an IBM machine with a FORTRAN compiler after his first efforts at a two-stage device didn't work. The next set of tests ran just fine.
Yes. Not much fallout at all. Tiny selectable-yield H-bombs engineered to be clean.
Freeman Dyson & co generated estimates of how many fatal cancers would be caused globablly for each launch, and the number was 'less than 10', but they knew that was politically unacceptable.
I wonder how many folks die of lung cancer caused by exposure to nuclear radiation from trace elements in coal smoke? Gotta be way more than 10
Yup. 'Camouflet'. Rearrange the ground under the target, creating a void which then collapses, messing with any structures built above. Streamlined, armour piercing, fancy steel casing .. go to the memoirs to find aircrew saying they were different from other bombs, as they fell they didn't tumble, they just dropped straight down, spinning as they picked up speed.
The 4000 to 12000 lb HC "blockbuster" bombs on the other hand .... cookies! Unremarkable steel dustbins full of high explosive, often dropped in company with about 1000x 4lb incendiaries. The cookie might knock down lots of buildings, such as an entire street of houses, and the incendiaries would then set fire to the wreckage. Not nice? No. But Bomber Command learned part of its business by looking at bomb sites in the UK.
3 million tons being approximately 1/17 the yield of the Soviet Tsar Bomba, as tested in 1961, at 50% of selectable yield.
Think on that; six years of industrial warfare on a global scale, including the first three fission bombs, being a tiny fraction of the yield of a single weapon 20 years later
Or even thermonuclear gadgets.
The ship would be about a thousand tons of cast iron drive plate, about a thousand tons of crew space on top ... and a very big spring/shock absorber contraption in the middle, plus a few thousand tiny selectable-yield H-bombs in a magazine on rails a bit like a beer bottling plant, that'd be about another thousand tons.
Set the fuse on a bomb for maybe 2s after it arms itself, shoot it out of a hole in the drive plate using some sort of spring cannon, then slam the trapdoor shut.
This chemical rocket fuel business isn't half as much fun; doesn't deliver half the specific impulse either.
Nope. Forty days there, maybe forty days on the surface, forty days back.
I'll want a really massive radiation shield made out of freshly-mined lead for all living spaces, on the voyage spacecraft, lander and habit to keep out cosmic nastiness.
And an even bigger radiation shield to keep me safe from my own propulsion plant!
Look, I'm just some fat oaf behind a keyboard -- physics and gastronomy, pasta and antipasta, that sort of thing.
I reckon I'm better qualified than him to fly on that thing (apart from the billionaire bit, obviously). And I wouldn't fancy it; too many things that could go wrong and either kill me if i didn't fix them promptly, or just kill me. It's not even like the flight will be to low Earth orbit and back, so if anything went wrong I could go for an early re-entry.
Ascent phase goes wrong and I get dropped almost anywhere? Gobi desert, Greenland glacier, Amazonian rain forest, Peckham? I might cope. Middle of the Pacific, have to get out before the spacecraft sinks and then swim for it? Hmmm. Failed circuit breaker, need to wedge it with a pen cap? Yes I know that one. Tiny hole in the cabin during re-entry and no pressure suit? Suppose you can't spot the hole, or can see it but not reach it, to bung it?
Got stung on the wrist myself at a beer festival a fortnight ago. I played nicely all weekend (no swatting!) but got stung anyway. I’d include the picture if I could, but El Reg’s below-the-line stuff doesn’t support that.
Wasp sting treatment? Insect bite creams like Anthisan are good. Or failing that, topical application of something mildly acidic like lemon juice. Or application of ice. You can imagine I had lots of trouble finding ice and lemon at a beer festival at a pub.
As per a fellow commentard's remarks, the water in the input tank won't be freshly drawn, it'll have been standing there for several hours. The tea or teabags in the teapot waiting for the arrival of boiling water will have been out of one's airtight tea caddy for a similar number of hours.
In my experience, one has to either pour+strain (or remove teabags) as soon as boiling water delivery ends.
Worst of all: milk. If one's aim is to have a machine make tea for you at your bedside, your choices are to do without milk, or to have a fridge next to the bed (impractical: tiny fridges are known for noise and appalling electrical efficiency), or to have individual pots of UHT, or ... to get out of bed and go to the kitchen fridge.
The technology can be repurposed as it is essentially a self-puring kettle fused to an alarm clock. Load the teapot with instant coffee granules, fruit tea or what have you.
My overall assessment is: overalls not required to operate your teasmade. The tea is more palatable than 'better than nothing', it is at least 'adequate', though not 'good'.
Since for some reason we in the UK only own 15 F-35s so far, if they are easily replaced, why don't we hide those 15 under a tarpaulin for a bit, and 'replace' them?
I suggest that purely in cost terms, F-35 pilots are currently easier to replace than F-35s. But it wouldn't do to be caught planning anything based on that idea; it wouldn't do at all.
"Very dangerous if one engine failed, like most twin engined WW2 british aircraft."
But -especially- true in the Mosquito.
The problem is that the sudden imbalance in thrust causes the aircraft to begin a ground loop, ie make a very tight turn on the ground. In a Mosquito being accelerated down a runway by two Merlins, that'll probably tear off the undercarriage and the aircraft will be sliding along on its belly. Wooden aircraft, two tons of bombs, couple of tons of petrol, and hot engine exhausts ... not fun.
It was about crippling the steelmaking industry.
Without water they couldn't make steel, without steel there would be no weapons, and without weapons there would be no war.
"Thousands of German personnel were promptly redeployed to sit around the dams manning flak guns"
more importantly, 20000 man years of construction effort got committed to rebuilding the dams, which might otherwise have been spent building Atlantic Wall defences, which might explain why on and after D-Day Allied troops overran locations they expected bunkers but found only surveyors pegs.
"The fission process"
typo or editing error ...
"turns two forms of hydrogen – deuterium (extractable from water) and tritium (produced with lithium) – into the inert gas helium – and neutrons"
"which can generate power."
Is it the neutrons that can generate power, or the the helium too?
How is the power generated? This is not a fission installation where the primary cooling circuit extracts heat to sustain a thermal flux to boil water and drive a steam turbine.
" although that Renault engine was down on absolute power it was reputed to be more driveable and (I think) fuel-efficient than the Mercedes and Ferrari engines."
False. God you must be old. That was true in 1983-5. But not any time recently.
Do please consult https://www.grandprix247.com/2017/07/02/inside-line-why-is-the-honda-engine-so-bad/ , and read the commentards' remarks.
Supposedly, the Mercedes F1 power unit (2014-) employs a technique 'turbulent jet injection' which, if you're good at it, affords more power (or torque, or economy, or ...) and also reduced emissions. Mercedes had a satisfactory power unit from the start of the current engine rules in 2014, Honda's power unit debuted with this technology in 2015 but the engineers haven't got it right yet, and Ferrari and Renault introduced it sometime mid-season 2015, having found out the previous year how far behind the game they were.
I offer an observation of my own, straying a bit off-topic here: the mass-market manufacturers such as Honda are in this game to explore the technology and train engineers, and what they're interested in is petrol engines that achieve both incredible thermal efficiency and reduced pollution profiles. Honda is unlikely to quit just because they're not winning. Alonso has a reputation for changing teams in ways that sabotage his career instead of helping it; in pursuing his it's-Honda-or-me policy with his present team's management, there is scope for him to score his biggest own goal yet.
... so are these the same hackers that are trying to abuse the smart meter I have diligently ensured will not be installed because I don't want people doing network-enabled f**kery with my domestic energy supply, only notionally facing 180deg the other way? Or different hackers entirely?
Eggs to be fried by default, options include poached or scrambled.
In the case of fried or poached, the yolk is to be soft.
Tomato ketchup, or brown sauce, or mustard. Or several.
I have heard of some establishments where I live, in God's Own Southend-On-Sea, providing a sprinkling of rocket on the fryup. This is an abomination and my Inquisition will be dealing with it.
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