From:
That's truly historic, only 70 years behind the Russians.
Of course NASA helped a little.
What's it for?
John Larkin Highland Tech Glen Canyon Design Center Lunatic Fringe Electronics
Well no, tehre is Ariane
Really?
Bombs for trump?
'Five cubesats and one non-deployable scientific experiment went up on "Onward and Upward."'
Am 06.09.26 um 12:50 schrieb john larkin:
What is that NASA thing? Do they still build stuff or do they channel only $$$ to DT's friends nowadays?
The V2 reached 100 Km, the border to space. A few Km higher is enough for a LEO. Might have been sufficient to start it near equator instead of Peenemünde to get another 40,000Km / 24h for free.
That was 80 years ago.
BTW, the Ruzzians also got some help from whom they looted from von Braun's group.
Gerhard
Article says it was launched from northern Norway, which probably puts it inside the Arctic Circle
To be fair, they probably used NASA and its data to establish time-dependent clearance for the launch as well as the orbit itself, to avoid a collision with all the junk up there. That's something becoming more and more critical by the day.
When crashed and unexploded German V-1 components were salvaged in Britain and sent to Wright Field in July 1944, the U.S. military rapidly reverse-engineered them in a matter of weeks. They split the production contracts among major American manufacturers:
The Pulsejet Engine: Ford Motor Company was given the task of reverse-engineering and manufacturing copies of the German Argus As 014 pulsejet. Ford's successful replica was designated the Ford PJ31.
The Airframe: Republic Aviation (and later Willys-Overland) was contracted to manufacture the airframe.
The resulting American copy of the V-1 was called the JB-2 Loon, and thousands were ordered in preparation for the planned invasion of Japan.
Both that and the V1 had a maximum range of aprox 150 miles, which is hardly anything. No wonder they had to be dropped from long-range aircraft.
Going up 100km is not enough. You also need to miss the earth when you fall back. That's by far were most of the energy goes.
Jeroen Belleman
Jan Panteltje snipped-for-privacy@comet.invalid schreef: |----------------------------------------------------------| |"[. . .] | |>That's truly historic, only 70 years behind the Russians.| | | |Well no, tehre is Ariane | |[. . .]" | |----------------------------------------------------------|
No Ariane rocket is launched from European soil. (S.
Suborbital flight is further from orbit than you might think. Reaching
100km of altitude requires 0.98MJ/kg (100km · 9.81m/s/s), a Δv of 1.4km/s (E/m = ½v²). Mean orbital speed v ≈ √(GM/a). Earth weighs M = 5.97 × 10²⁴ kg, G = 6.67 m³/kg/s/s, and a in this case is the radius of the earth (6371km) plus our height of 100 km. This works out to 7.85km/s, a kinetic energy of 30.8MJ/kg.So, suborbital flights to the von Kármán line, as game-changing as they would have been had decent guidance systems existed in 01942, are about
18% of the way to orbit in Δv terms, or 3% of the way in energy terms.In particular, the V-2 was designed for 75%-ethanol 25%-water fuel with a cryogenic liquid-oxygen oxidizer (“Brennstoff”). Pure ethanol has
30MJ/kg, so it cannot reach orbit. Carrying the oxygen cuts that in half or more. The V-2 engines needed to be completely redesigned for more energetic rocket fuels. So trying to orbit a payload with a V-2 wouldn’t be any more effective than trying to climb a ladder to the moon.To be fair, by the end of the war, the Germans had built rockets before the end of the war that ran on various more exciting mixes like C-Stoff/T-Stoff and S-Stoff (with some reductant).
Kragen
He's certainly a famous president. Greatness implies achieving something, and while wrecking the world economy would be a dramatic achievement, he doesn't seem to think that this is what he is trying to do.
My nightmares are Trump-free. The pleasant dreams don't include him either.
Trump does seem be to working hard to disrupt our lives, mostly by inept interventions in the world economy. It is an attention-getting activity. It's a bit surprising that you don't seem to be aware of its downsides, but Trump's professed aim seems to be to help the US economy (not that there's any credible evidence that he has).
And when it does happen you don't understand what they have said.
About the only statement of that sort that would get your attention would be along the lines of "John Larkin has posted an example of competent electronic design" and they do seem to be vanishingly rare.
This isn't any kind of mutual admiration society.
He extrapolated from his own situation. If Trump suffered from a disabling accident, the war with Iran would get unwound very rapidly.
Trump and Netanyahu killed off some 40 to 48 of the heads of the Iranian government, and the people who replaced them were just as silly as their predecessors.
America's short history does include a few wars, and Trump started one with Iran.
Isolationist American's don't like foreign wars in principle, but have fought quite a few of them anyway. They do seem to be an unprincipled bunch.
There's nothing maybe about selling them weapons. The US military-industrial complex is mad-keen on getting the American government to encourage it's allies to spend more on defense, on the basis that a lot of that money will get spent with the American defense industry.
Mary Kaldor's "The Baroque Arsenal" from 1981
argues that the industry has an interest in promoting over-complicated weapons systems that they can sell for higher prices.
The Ukraine's and Iran's cheap drones have put a crimp in that but the weapons industry is busy elaborating them in ways that will improve their cash-flows.
US has been making wars using the CIA to create unrest in Europe ever since WW2 if not earlier. And I know, they asked me to participate and I refused. All to sell their inferior in many cases (F35 comes to mind), weapons and get control,
There is more to it, but I will keep it simple to make it easier for you.
I got the impression that Trump doesn't really care about US people either. His creed is money, more money, no matter the consequences.
[...]I think you are mistaken there. For the moment, they unite against their foreign aggressor.
Jeroen Belleman
It is really the other way around. Germany pays 266 millions of the entire 1830 millions for the so-called hospital and no German citizen will ever be healed there. Contrarily, the ill-fated air show at Ramstein saturated the local hospitals down to Ludwigshafen and beyond.
That's 26.9 million per bed. If you believe that, you probably have strong beliefs in the Tooth Fairy and Santa Claus, also.
If you want to count to count the years *without US war* since 'We The People', it is easier to to delegate the job to two experienced workers of a saw mill. They still can count them on their leftover fingers. Not much more than 12 needed. The time from Columbus to 'We The People' was used to eradicate the natives.
Gerhard
I supose they could be very large beds. Real Bigly.
Have something to add? Share your thoughts — no account required.
Ask the community — no account required