2050 posts • joined 29 Jul 2007
Virgin Galactic test flight reaches space for the first time, lugging NASA cargo in place of tourists
FYI: NASA has sent a snatch-and-grab spacecraft to an asteroid to seize some rock and send it back to Earth
What's the problem? They're nuggets which contain a large proportion of vegetables. Since 'nugget' (in this sense) by default describes a meat product you should expect meat unless the name includes words like 'vegetarian' or 'non-meat'. I'm not a vegetarian but my sister is a vegan and I can assure you she checks things like this.
Re: If a plane can do this, what happens to cars?
It is still claimed that we will soon have fully automatic driverless cars. These will be operating in a vastly more complicated environment, with far less time to sort out problems. And there will be far more of them. What are the chances that nothing like this will happen?
I can absolutely guarantee that something like this will happen with driverless cars just as I can guarantee that until we get drivers cars people will continue to die on the roads at a rate of over one million per year. To bring this post back on topic imagine the outcry if the airline industry killed a million people each year.
Trump is the bullshitter supreme, but sometimes he'll just be regurgitating boring facts. Against that background the bullshitting is easy to spot, but only for us, not for him. I've known people like Trump and they really do believe that the story they've just concocted out of whole cloth is true simply because it feels true to them.
my first thought was this sounds kinda fishy. Then I realised it's not like we dealing with some multinational conglomerate here. So, probably some sort of private arrangement to take over the lease — my brother knows a bloke who knows someone or "this bloke down the pub'.
Then something goes wrong:
"Our new place's not ready yet. We need another few months".
"But we've already given out the new address".
"Don't worry, we'll bung any letters into the cupboard in the storeroom. If it's urgent they'll use email".
So six months later someone bothers to check that cupboard in the storeroom. . .
Samsung 'reveals' what looks like a tablet that folds into a phone, but otherwise we're quite literally left in the dark
Has science gone too far? Now boffins dream of shining gigantic laser pointer into space to get aliens' attention
Should a robo-car run over a kid or a grandad? Healthy or ill person? Let's get millions of folks to decide for AI...
Re: Similar scenario with a line printer
"The only thing I said that wasn't true was that the electricity that came out of the three pin sockets was better quality than the stuff that came out of the old two pin sockets."
Even that's not exactly untrue. "Less likely to kill you" is better in my book.
Good news: Largest, most ancient known galaxy supercluster is spotted. Bad news: It's collapsing on itself
Alexa heard what you did last summer – and she knows what that was, too: AI recognizes activities from sound
You're making a lot of assumptions there
As I read it the penitentes are near the equator (warmer environment aiding sublimation, presumably). So, at the poles the radar signal just disappears into space unless it's pointing straight down. At the equator there are vertical and horizontal surfaces forming cavities which reflect the signal randomly creating a more or less omnidirectional return signal.
That may be technically true but objects in LEO require constant reboosting to stay in orbit. Spack Junk in LEO doesn't remain a problem for long. (Not that it matter since we're talking about something like a 50% difference in orbital and the error in my figure is greater than that.)
@Brewster's Angle Grinder
I don't understand what you're doing with your energy calculation but 0.06 m/s is a tiny delta V. One article I looked at suggests a delta V of around 200m/s is required to put a satellite in geosynchronous orbit into a Hohmann transfer orbit that would intersect the atmosphere.
Reading the original article (always advisable before calling the authors idiots) reveals that the figure of 1800 seconds is in fact the specific impulse of the thruster not any actual time. Half an hour would, in fact, be a surprisingly low figure. Typically these sort of drives have to be operated for many hours to give any sort of useful delta V.