What's there to report? Have them take a standard visual acuity test (one of those optometrist's signs with rows of letters that become smaller). Make sure they can't cheat by learning the chart beforehand. The advantage of including the Russians is that they've been doing long flights for far longer than the ISS, so it'll give insight into the long-term effects (if any). Also, many of the Salyut/Mir-era Russians won't be on flight status anymore anyway so won't have an incentive to lie.
The boosters for Ariane 5 (a bit smaller than the Shuttle SRB, but close enough) are shipped to French Guyana empty. ESA/Arianespace have built a casting facility on site.
A foot is a better natural unit for distance than a meter.
No it isn't. It just seems natural to you since you're used to it. To everybody not still wedded to archaic units, meters are perfectly natural and usable.
I've downloaded and used a couple of Wifi diagnostics applications, but it's never occurred to me to look in System/Library/CoreServices for applications. So yes, hidden. It should be in Applications/Utilities, along with other apps that not every user would understand like Console and RAID Utility.
A couple of years ago I was involved with a project doing large-scale digitalization on old texts; we found that having it typed up by humans in India was more accurate than the OCR software we had available. We developed some software to streamline this process (mainly a dedicated editor that provided the markup we needed without unneccessary clutter).
Didn't Apple do this in the early '90s with OpenDoc? That wasn't exactly a resounding success, in fact the only OpenDoc apps I remember just packaged the entire app into one container, defeating its purpose.
TFA is remarkably light on details. The ZDnet article refers to the SNAP-10A satellite, which had a 45 kWt reactor that produced 650 watts of electrical power via thermoelectric converters, which is not much for a device that's about the same size as this new proposal. If they want to produce 40 KWe from a small package, some other technology may be needed.
That one made me suspicious, since all of the Model S concepts I've seen were for a 4-door hatchback. But it seems that Tesla published plans to (optionally) fit two rear-facing kid seats in the 'boot'.
If that's so, why does SpaceX's launch manifest list a bunch of launches for non-government and non-US organizations? They already are "involved with the private sector's use of space".
I'm curious, why that combination? If you're going to start with a Lancer, why not take the Evo version and have a more performance-biased drivetrain than any (Audi, I presume) quattro? And the 4G63 can be tuned to astronomical levels, so why replace it with a TDI?
Additive machining is cute, but not a miracle. It's a slow process.
Sure, but that's not the point. If you need 100,000 greeblies, you can probably afford to have a $100k mould cut for your high-speed injection moulding process. The exciting property of 3D printers is that it's now possible to create plastic (or metal) parts in small numbers.
Printing also has some advantages over the usual machining techniques; clamping is one. The absence of tools means you can create structures that are too fragile to achieve with a milling machine. You can print objects inside one another.
For some industries, the 3D printer is a revolution. I build scale models. Until now, the model kit cottage industry created kits by hand-building a master (a process in which it is basically impossible to get curved surfaces exactly right) and then casting resin copies of it. The 3D printer means that we can create sub-mm accurate masters, or even sell the 3D parts directly (though they still are more expensive than resin cast parts).
The blog makes several interesting observations. First, operators having to be close to the plant because of communication difficulties. Now I realize I'm being an armchair engineer here, but the first thing I'd have done was to assemble longer cables, or find other means to increase the distance. If this isn't possible, maybe it's an indication that we need a different control mechanism for these robots. A proprietary protocol would be more difficult to jury-rig than e.g. Ethernet.
Second, shielding. Is there no way to shield the operators? If you have to put a control cabin in a high-radiation environment, why not stack sandbags, drums of water, concrete blocks etc. around it? If necessary, use shipping containers to prefabricate the shielding, so you can minimize exposure time during the installation of the cabin.
Third, the buildings are difficult to access with robots. Tethered robots won't work in elevators (if the elevators even work). I get that you usually want to minimize the holes in the containment structure, but perhaps there should be a bit more foresight going into designing these buildings?
That's for domestic shipping. For the Emma Maersk, I get 4.5 BTU/ton mile (130 kBTU per gallon, 1660 gal/h to propel 156 ktons of freight at 30 mph)
Sixth, trains are packet-switched networks. You can load a railcar at your factory and it will be routed to the destination. Your content on the car will not be disturbed. Ships require packing in sea containers, which is not convenient or even possible for many types of loads, thus requiring special ships to carry liquids, gases, ores, fruits etc. In a train all you need is a special car; the train doesn't care what your car is doing, as long as it can be hitched. A ship requires loading and unloading which ain't free.
Your argument is flawed. The worldwide container network is packet-switched as much as trains are, and is more flexible because it uses rail, road and water links. Containers that carry liquids, gases, or refrigerated goods all exist. When you're talking about huge volumes, you need either special ships (oil tanker, gas tanker, bulk carrier) or special rail cars. Both ships and rail cars require loading/unloading.
If there's one place you should visit when you're in the UK, it's Bletchley Park. Seeing the Colossus and their other rebuilt equipment in action is fabulous, and even better, some of the tour guides are the same guys who rebuilt these machines. More knowledgeable than that they don't come.
The 'first computer' debate is complicated; there were several machines that can lay claim, depending on your definition of 'computer'. IIRC Colossus wasn't Turing-complete, see this comparison of 1940s computers.
The US was well on its way developing ENIAC by 1945, I don't see Colossus being published in 1945 making much of a difference. The first commercially available was British (Ferranti Mk 1), IBM built its lead later on.
Volunteers do this sort of thing without compensation all the time. Language lessons, tax form assistance, house work, odd jobs, you name it. The interesting bit about this story is that it's the library doing the coordination, rather than individual, smaller (possibly less well-known) organizations (churches, community programs, what have you).
Slashdot Mirror
What's there to report? Have them take a standard visual acuity test (one of those optometrist's signs with rows of letters that become smaller). Make sure they can't cheat by learning the chart beforehand.
The advantage of including the Russians is that they've been doing long flights for far longer than the ISS, so it'll give insight into the long-term effects (if any). Also, many of the Salyut/Mir-era Russians won't be on flight status anymore anyway so won't have an incentive to lie.
The pool of American astronauts who this may apply to is small, but there's a number of Russians who've been in orbit for long periods.
Agreed. For the price of the SLS, NASA can buy 300 Falcon 9 rockets (or a mix of F9 and F9 Heavy for an average price of $100M).
James Webb will be unfixable since no manned platform (including the Shuttle) can reach its orbit.
I assumed that they'd be cast in a single pour, but apparently not: booster manufacturing process
The boosters for Ariane 5 (a bit smaller than the Shuttle SRB, but close enough) are shipped to French Guyana empty. ESA/Arianespace have built a casting facility on site.
A foot is a better natural unit for distance than a meter.
No it isn't. It just seems natural to you since you're used to it. To everybody not still wedded to archaic units, meters are perfectly natural and usable.
Does that include the rack space rent?
The abstract talks about "730 kg days". Huh?
I've downloaded and used a couple of Wifi diagnostics applications, but it's never occurred to me to look in System/Library/CoreServices for applications. So yes, hidden. It should be in Applications/Utilities, along with other apps that not every user would understand like Console and RAID Utility.
everybody's copying Apple, this time with translucent mice.
A couple of years ago I was involved with a project doing large-scale digitalization on old texts; we found that having it typed up by humans in India was more accurate than the OCR software we had available. We developed some software to streamline this process (mainly a dedicated editor that provided the markup we needed without unneccessary clutter).
Didn't Apple do this in the early '90s with OpenDoc? That wasn't exactly a resounding success, in fact the only OpenDoc apps I remember just packaged the entire app into one container, defeating its purpose.
TFA is remarkably light on details. The ZDnet article refers to the SNAP-10A satellite, which had a 45 kWt reactor that produced 650 watts of electrical power via thermoelectric converters, which is not much for a device that's about the same size as this new proposal. If they want to produce 40 KWe from a small package, some other technology may be needed.
That one made me suspicious, since all of the Model S concepts I've seen were for a 4-door hatchback. But it seems that Tesla published plans to (optionally) fit two rear-facing kid seats in the 'boot'.
If that's so, why does SpaceX's launch manifest list a bunch of launches for non-government and non-US organizations? They already are "involved with the private sector's use of space".
tube-frame Lancer with a TDI+Quattro drivetrain
I'm curious, why that combination? If you're going to start with a Lancer, why not take the Evo version and have a more performance-biased drivetrain than any (Audi, I presume) quattro? And the 4G63 can be tuned to astronomical levels, so why replace it with a TDI?
Additive machining is cute, but not a miracle. It's a slow process.
Sure, but that's not the point. If you need 100,000 greeblies, you can probably afford to have a $100k mould cut for your high-speed injection moulding process. The exciting property of 3D printers is that it's now possible to create plastic (or metal) parts in small numbers.
Printing also has some advantages over the usual machining techniques; clamping is one. The absence of tools means you can create structures that are too fragile to achieve with a milling machine. You can print objects inside one another.
For some industries, the 3D printer is a revolution. I build scale models. Until now, the model kit cottage industry created kits by hand-building a master (a process in which it is basically impossible to get curved surfaces exactly right) and then casting resin copies of it. The 3D printer means that we can create sub-mm accurate masters, or even sell the 3D parts directly (though they still are more expensive than resin cast parts).
The blog makes several interesting observations. First, operators having to be close to the plant because of communication difficulties. Now I realize I'm being an armchair engineer here, but the first thing I'd have done was to assemble longer cables, or find other means to increase the distance.
If this isn't possible, maybe it's an indication that we need a different control mechanism for these robots. A proprietary protocol would be more difficult to jury-rig than e.g. Ethernet.
Second, shielding. Is there no way to shield the operators? If you have to put a control cabin in a high-radiation environment, why not stack sandbags, drums of water, concrete blocks etc. around it? If necessary, use shipping containers to prefabricate the shielding, so you can minimize exposure time during the installation of the cabin.
Third, the buildings are difficult to access with robots. Tethered robots won't work in elevators (if the elevators even work). I get that you usually want to minimize the holes in the containment structure, but perhaps there should be a bit more foresight going into designing these buildings?
a ship burns 510 BTU/(ton*mile).
That's for domestic shipping.
For the Emma Maersk, I get 4.5 BTU/ton mile (130 kBTU per gallon, 1660 gal/h to propel 156 ktons of freight at 30 mph)
Sixth, trains are packet-switched networks. You can load a railcar at your factory and it will be routed to the destination. Your content on the car will not be disturbed. Ships require packing in sea containers, which is not convenient or even possible for many types of loads, thus requiring special ships to carry liquids, gases, ores, fruits etc. In a train all you need is a special car; the train doesn't care what your car is doing, as long as it can be hitched. A ship requires loading and unloading which ain't free.
Your argument is flawed. The worldwide container network is packet-switched as much as trains are, and is more flexible because it uses rail, road and water links.
Containers that carry liquids, gases, or refrigerated goods all exist. When you're talking about huge volumes, you need either special ships (oil tanker, gas tanker, bulk carrier) or special rail cars.
Both ships and rail cars require loading/unloading.
If there's one place you should visit when you're in the UK, it's Bletchley Park.
Seeing the Colossus and their other rebuilt equipment in action is fabulous, and even better, some of the tour guides are the same guys who rebuilt these machines. More knowledgeable than that they don't come.
The 'first computer' debate is complicated; there were several machines that can lay claim, depending on your definition of 'computer'. IIRC Colossus wasn't Turing-complete, see this comparison of 1940s computers.
The US was well on its way developing ENIAC by 1945, I don't see Colossus being published in 1945 making much of a difference.
The first commercially available was British (Ferranti Mk 1), IBM built its lead later on.
Roman numerals and sans-serif fonts are the combination from Hell. I'd much rather use WW2 instead.
Volunteers do this sort of thing without compensation all the time. Language lessons, tax form assistance, house work, odd jobs, you name it. The interesting bit about this story is that it's the library doing the coordination, rather than individual, smaller (possibly less well-known) organizations (churches, community programs, what have you).
Then I'd expect a much flatter angle. I'm at 52deg latitude, and the optimum angle for solar panels is 35deg.