A Failure For SpaceX: Falcon 9 Explodes During Ascension 316
Elon Musk has posted a note on the company's Twitter channel: "Falcon 9 experienced a problem shortly before first stage shutdown. Will provide more info as soon as we review the data."
So, it's the spiritual successor to Lotus Notes, then?
The battery pack for a Prius is carefully managed to stay in a charge state that allows for the largest possible number of recharge cycles (IIRC it stays between 50 and 80% charge). An electric-only vehicle doesn't have that option at the moment.
The revolution is in being easily able to create complex shapes. Traditional manufacturing methods for these sort of parts fall in one of two categories:
1. Labor-intensive using simple tools. E.g. Welding the frame from stock pipe and plate.
2. Amenable to mass production, but at a huge initial cost (for tools). E.g. casting, forging, stamping.
3D printing allows complex shapes to be created from a CAD model without lots of labor. This is great for small production runs (i.e. runs too small for 2. to be cost-effective).
I see a number of highly-rated comments recommending using Google for mail rather than the ISP's mail service.
This surprises me, given the privacy implications. I can reasonably assume my ISP won't read my mail other than for spam filtering. Google, on the other hand, will use your mail as input for their advertising machine.
Interesting, thanks!
The main thing that keeps me from buying a smartphone is that I have two choices: pay through the nose or accept an OS made by an advertising company. If these guys find a way to decrapify Android, I'm in.
and is using the reverse of the tried-and-true (when you're lost: bury a length of fiber, wait for the inevitable backhoe to show up).
If it's Google, it ain't free. You pay for it with your privacy.
In addition to the official ESA news channels, there's a Twitter account by the name of SarcasticPhilae.
(Can't believe I'm recommending anything from Twitter, I suppose this is the exception that proves the rule)
So what you're saying is, "that's no moon!"
In any formula, constants (especially those obtained from handbooks) are to be treated as variables.