630 posts • joined Monday 24th May 2010 10:05 GMT
Re: How many MFlops/W from a Raspberry Pi?
Raspberry Pi is theoretically 24GFlops.
@5w it would be ~4800MFlops/w
I'd be more interested in what some of the more modern Phone processors can do.
Nuclear sub crew, they are accustomed to cramped, radiation riddled, cut off from the world environment already.
They use the VVT to keep the inlet/exhaust valves open for longer to reduce pumping losses.
Fusion for energy
"The trouble is that sustained fusion is extremely difficult to achieve"
True, but at the same time it is not always necessary and is the myth perpetrated by the Tokamak supporters.
Tokamak is a white elephant, sucking up most of the Fusion research money. There are lots of other concepts that require much less investment and offer more promising returns in a shorter space of time.
Re: My, my....
That would probably be classed as insider trading and illegal in a lot of countries.
One for the tinfoilers
It's not just the 'lie detection', if it is using Subvocal recognition.
In theory they could be reading your 'thoughts', at least the ones where you are talking to yourself.
Re: Just add hardware
Depends on the safety and reliability requirement.
Through the igniter
Use solder (actual solder) to make the wires, run them through the igniter for the rocket.
No insulation to catch fire!!
The low melting point of the solder should ensure disconnection when the igniter triggers.
Re: PCs now quite good
Depends on the segment of the market, with operating systems not consuming as much of the system as they used to and most performing relatively light tasks, going from an i3 to i5 will make little difference.
The bulk of the performance loss is in the disk acess (a machine is only as fast as it's slowest part).
Hence why SSD's offer such a boost.
However heavier duty users e.g. Gaming, Photoshop, CAD etc will observe a benefit.
Re: No chance in hell
"$15M/mile for loop
£200M/mile for HS2"
The excess pocketed by various party members when their land is sold to the government to pay for it.
Yup and when they conveniently exclude 'party sponsors' businesses for that convenient 'charitable' donation.
Re: They should focus on two things ...
@Raumkraut, how many devices do you have in your home with a microchip, more than you're prepared to admit.
99% of these have no operating system and bare metal is the only way to go.
Where does all this code come from I wonder?
Just because you personally are not exposed to Embedded, doesn't justify rarity,
Re: *scratching head*
They tried reigniting the second stage as well, but stopped due to a problem.
They're looking at recovering both stages.
“A printer needs to heat up and takes hours to print one thing. The cost of a million people printing in a million different places will be huge,” warns Phil Reeves of Econolyst, a 3D printing consultancy, on one panel. “You’re better off producing things in factories, where it takes 15 seconds.”
A printer using ~250w for 8hrs to print what you need vs a factory using 250kw for 15secs + the shipping energy.
+ Middle man costs + Shop energy etc.
Not a clear cut as you think.
Economically it's not as good as you are cutting out all those middle men who take their chunk, but energy.
Re: Why maths is important
It's also latitude dependent.
Your connecting dish would need to move to track the satellite.
But the basic premise of your post is correct, you would not be able to get the full payload in one pass.
Don't be too sure, 4k TV's will be about soon, ok still going to be at the pricier end of the scale, but demand will drop the price, if the supply is there.
But this is the advantage of the proposed 'upgrade' capability.
Unfortunately by the time they got to the dock, their competitors had sailed over the horizon and already come back with all the gold.
BB's madness was then trying to sail off looking for the remaining scraps.
IMO more probable
A smouldering crater from some hitherto unseen WMD following the start of WW3.
You'll end up with an Aerospace setup, 2 or 3 big players and a few smaller startups aiming to take a slice.
Simply because of the shared nature of the businesses.
Re: @bazza: He's right.
1. Never underestimate the vagueness of Patents, especially in the US.
2. He is behaving like a spoilt toddler, throwing his teddy out of the pram when he doesn't get what he wants.
These things are possible, but in the low value/high volume world of ARM changes like this are a much more significant cost than can be estimated, especially given the current volume of ARM chips out there and being made.
Additionally, IF ARM or another supplier chose to add this functionality, while Linux still supports processors without these features, he and others will still have to do the work.
So it's a rant to nothing.
If there's a way in, you can get in.
If not, someone will make one.
Re: Actually looking like it will happen.
1. There is no pilot, it's automatic.
2. It's 30 passengers:
Re: A solar cell factory on the moon...
You missed a key point, the solar array is only generating power 14-15 days out of every 28.
The micro-asteroid problem is an issue in GSO.
You don't technically need to relay power to one point on the earth.
Transmission does have major issues.
Re: So it comes ....
Or just not bother making desktops if the marketing garbage is to be believed.
Re: Not just power
They were shown to be cheating!!
These indeterminate beings are trying to suggest to us we all need the snip!
"The difference between the fortunes of Armadillo Aerospace and SpaceX might come down to Musk's messianic quest to "die on Mars," Carmack indicated"
Or more likely that he's had much more investment and he aimed for orbital rather than sub-orbital.
And achieved his goals.
Sounds to me more like you lost interest.
Re: Deck Chairs, Titanic
Your logic is fine, but logic has nothing to do with this, your suggestion would never occur for the plain and simple reason of power.
People go into these positions looking for power and what do they want, more power.
You are suggesting Ballmer give up the thing he wants the most!
Re: I am not trying to criticise the work, which I know nothing about...
The problem is we are a hybrid of autonomic and "intelligent" systems, the difficulty is our lack of understanding where one ends and the other begins.
Added to that exactly how each of them works.
Re: less than 64K in size
Dons thick Yorkshire accent "When I were a lad..."
Yadda, yadda, yadda.
Re: M1 is a bit slow for orbital entry.
An impactor for Europa is going to be travelling iro 45,000-50,000mph when it hits the surface, which is iro 20-23 km/s or 20,000 - 23,000m/s.
About 58-65 times more energy than this test, with corresponding increase in G loading, not to mention, as Europa is so cold the ice is harder than steel.
Re: is a maglev train running in vacuum tubes
"How you float a multi-ton object on air is even more of a mystery."
Re: An atmosphere?
It's a gas giant with 10% more mass than Jupiter, the article incorrectly describes it as a rock.
Re: So what the author is suggesting is...
"What's the cost of car insurance for teenagers these days?"
For a 17yo, iro £3k-4k
Re: Not just weapons the DoD will never use.
Falcon 9 Heavy.
And subsequently sold to insurance companies.
All you are doing is moving the corrosion somewhere else.
Then, as has been stated, creating the issue that the ship needs to be designed around the weapon and not the other way around, allowing installation on existing vessels.
Re: Guilable idiots
If the public is paying for the launch, why waste money performing NASA levels of testing it, they'll be using the web development model, make sure it roughly works then get everyone else to test it and in this case pay for it.
NASA spend fortunes testing because it's a political shit storm when it fails.
This lot have no political or financial concerns, read the terms of the kickstarter, they're not liable for anything, all they'll lose is a bit of face. Send everyone a few pictures and they may try again.
"How do you get buy-in from people if they don't have anything to buy?"
This is the crux of it, the thing is if you read the kickstarter, they're selling the promise of something with no commitment.
I get your perspective, but that is a US centric viewpoint.
@15Kg, launch costs are going to be in the $150,000-$200,000 region.
They are putting images on a 'display' in front of a camera on top of the unit. Ooh could that be a tablet. Probably running some of the system software.
The print + shipping won't be more than a dollar.
I'd bet they're using a COTS approach, so the main cost is going to be the Attitude and Orbit Control System + Software (controlled via the tablet)
Given the very small size and COTS, I bet they've covered most of their development costs with this cash.
If you actually read the terms, there is no guarantee you'll get anything or when you'll get access to the system.
This is being funded by Billionaires and they want $1.5m from the public to pay for this, it's a joke!
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