Comment Re:vs. a Falcon 9 (Score 1) 75
They don't have nearly as much to offer if they can't do launches quickly. I'm sure they would make that a feature of their offering.
They don't have nearly as much to offer if they can't do launches quickly. I'm sure they would make that a feature of their offering.
... from Robert Heinlein. In both cases, the consequences of rude behaviour are much greater.
I worry most about the years-later consequences of surveillence on politicians and other leaders. They all seem to have sordid episodes, and this leaves them highly succeptible to hidden blackmail/pressure by data-holders. We will never know how they are manipulated and abuse their wide discretionary powers.
Not to protect "the little children" but to protect "the pervy pols."
They can carry about 110kg to LEO, compared to the Falcon 9's 13150kg. That's 0.84% of the payload capacity. A launch is estimated to cost $4 900 000, compared to the Falcon 9's $61 200 000. That's 8.01%. That means cost per mass to orbit is nearly an order of magnitude worse.
Yes, this is a really small rocket. If you are a government or some other entity that needs to put something small in orbit right away, the USD$5 Million price might not deter you, even though you could potentially launch a lot of small satellites on a Falcon 9 for less.
And it's a missile affordable by most small countries, if your payload can handle the re-entry on its own. Uh-oh.
If high intelligence were an unmitigated benefit, natural selection would have moved the IQ average to 130, 150 or whatever over the eons. There _must_ be commensurate down-sides. Depression? Slower reflexes? Go fetch!
As it is, we just have the Flynn effect of average IQs rising about 1 pt per decade over the past century. That might [or not] be considered as fast evolutionary change.
Your use of microbes in your argument is ironic since farmers are also a huge part of the problem of driving bacterial evolution for resistance through misuse of antibiotics.
Antivirals, antibiotics and pesticides should be used in the minimal amounts exactly where most needed. They should not be routinely used everywhere indiscriminately. That's the mode that these GMO crops are encouraging.
The GMO plants I was referring to were designed specifically accommodate increased usage of chemicals. Look up "Roundup ready".
Herbicide use in this country has skyrocketed due to the widespread adoption of GMO crops.
Making a plant manufacture its own insecticide is one thing. Modifying it so that it can withstand being soaked with ever-increasing quantities and varieties of synthetic pesticides is another.
Weeds are gradually evolving to resist this chemical onslaught. Most people would rather not have themselves subjected to such evolutionary pressure within their lifetimes.
The weeds are destined to eventually win this arms race anyway, so this huge experiment in chemical exposure to the US population is eventually going to be for naught.
Microminiature accelerometers are really cheap and very very light, and you don't have to wait for them to spin up or deal with their mechanical issues. I doubt you will see a gyro used as a sensor any longer.
Similarly, computers make good active stabilization possible and steering your engine to stabilize is a lot lighter than having to add a big rotating mass.
When you last flew a jet somewhere, why wasn't it a seaplane? Surely such things would be an easier problem to solve than building airports.
Short of giving you the starter course in rocket engineering, I can only say no, it's not easier.
The booster can indeed make it back uprange to Kennedy Space Center, and they've leased a landing pad for it there. Besides the turn-around burn, they tilt the booster against the airstream and let aerodynamics push it back uprange during that 78 mile descent.
If there's one thing they should work on, it's not thrusters but having the capability to throttle to hover. That would potentially change the entire low approach. It is complicated by the fact that engine performance goes nonlinear in the low range.
Here is the barge on the way to port, possibly with debris onboard. Here's a video of the landing shot from the barge itself. And I am waiting to see the barge from the Carnival Fascination webcam.
A video from the barge is now online here. If you step through the final frames, you can see that the camera mount ends up knocked over and pointing at the ocean, but the lens and its cover are unbroken and all we see flying appear to be small debris. So not a really high-pressure event.
It's very tempting to think this should work like an airplane. Lots of people wrote that it was "too hot", etc. But it isn't an airplane. The plan was really to approach at 1/4 Kilometer Per Second, then brake at the very last second.
Obviously Crew Dragon, which carries people, will approach differently. But it's a lot lighter.
"A car is just a big purse on wheels." -- Johanna Reynolds