I once had a job in the state public service and we had telephone cleaners who came around every week. And a good thing too, we could have been wiped out by a disease transmitted by dirty telephones.
The cell respiration data seemed to indicate cell respiration with circadian rhythms. Could not possibly be a simple chemical reaction
Variations in temperature between day and night would influence a simple chemical reaction.
But having said that, this discussion is making be rethink the whole Viking life detection issue. I wish we had an instrument on the way which could answer the question.
Why don't we just invade some place with a lot of oil, then?
I read recently that the entire gulf region is a net importer of fuel because they don't have the refining capacity. So we should actually stop exporting fuel to them. Might do some good, you never know.
Of course, an electric motor makes things somewhat easier, since the armature might be light enough not to require a clutch (just cut power to the thing),
Or directly drive the motor so the teeth engage cleanly. Not that I believe you need a gear box with an electric motor. It should be more effective to design a better motor.
this situation provided a chance to test out the newly developed repair techniques and materials in a "real world" setting
Particularly since there is a very small chance that the repair technique is totally broken for some reason. This would be the ideal opportunity to find out.
So true. A builder who my wife works for sometimes told us that he stripped the interior of an office and threw out a substantial amount of cable, then found out how much the stuff is worth.
C, Ada, Java a bit of shell scripting depending on the team you are in. Linux and Tru64 unix. Drop me a line: smithm at netapps dot com dot au. Thats my home address, not my work one.
So there may or may not have been a fire but the tech definitely drilled through a mains cable. Don't they carry instruments for that? Something which picks up 60Hz AC?
In any event it should be SOP to drill a shallow hole at first and check the cavity for cables before drilling further. Thats how I would do it anyway.
number plate recognition software read a letter or number wrong
We have these speed cameras here in Australia which measure your speed over a distance by recording your travel time between two points and correlating rego plates. It had been assumed that they used some kind of OCR until a bus driver got charged with going 153 km/h (impossible for that type of bus) because the system confused plates with transposed digits, ie, AB != BA.
Seems like one of the popular business fads of the moment is "having a sense of urgency"
One manager I know set the clock on his laptop forward a month at the start of a critical phase in the project so that his emails sat at the head of everybody's queue for the duration.
How do you keep the data up to date without downloading the entire 2.9G again?
Not too hard if you have a sub-etha net connection handy. Better check that the article about The Earth which you have been working on hasn't been cut down to two words though.
entropy on earth is higher than it would be without life.
Yes, until we run out of oil, coal, uranium, deuterium, etc. These things are all energy stores of one type or another, as is the sun. As it stands the emission of energy from the sun is unchanged by us. Until we start getting really greedy of course.
Oops your home page is crashing. Missing something called functions.inc
I should have recognised that video from The Inventors because I watched it a lot in the 1970's. Even if this DARPA team started with that invention they would still have had to do some development work, probably using better materials and working out how to validate and maintain the product. Anyway, thanks for pointing that out.
would still have excessive acceleration for a human payload. The mass fraction of the ET is on the order of 25, IIRC, and several times heavier than the shuttle.
The shuttle stack effectively throttles down when the solids burn out.
One site I found says that there is a throttle down at 7:40.0 to 3G before MECO at 8:00.0 so acceleration can't be much above 3G at 7:40 and would surely not go above 5 at cut off without throttling.
5G is OK for a human crew but outside design limits for the shuttle and the shuttle/ET combination, which must be the reason for keeping it at 3G.
I can go to walmart and buy a perfectly usable bike for $150, or go to a specialized bike shop and spend $2k or more for a really, really good bike. The same thing with golf clubs and bowling balls. Heck, look at archery. There's all sorts of sights and release aids that aren't strictly necessary that people willingly spend money on.
I am a bike rider and a snorkeler and this article has got me thinking about integrating some sort of power assisted snorkel with it. Swimming under water is more efficient than being on the surface, so being a metre down with fins like these would be a big advantage. You can't suck air to that depth with your lungs but it might be possible to use the motion of the rig to pump air from the surface and into a mouthpiece. Athletes already learn to synchronise breathing with body motion.
What's the difference between this new gizmo and old good monofin?
The monofin is longer and narrower so it has more parasitic drag. This device is more like a high aspect ratio sailplane wing, while the monofin is at best like an old style hang glider.
I can't actually think of any times where you'd want something like this if it only lasts 300 meters
How far you go depends on the user. In general I think scuba gear has it easy on the oxygen supply side. The leg muscles which drive your fins can only use so much oxygen. By using muscles in the torso to push the wings up and down you do more work for more return and (probably) use more air.
For me this is a bit like the difference between open pedals and clipless pedals on a bicycle. The former case has poor power transfer and performance, but doesn't load the metabolism so it is good for Your Mum to use. Attach your feet to the pedals and you immediately need to be a lot fitter but you can go very fast and have more endurance.
Maybe we will now see people swimming the English channel under water or doing underwater endurance races.
Slashdot Mirror
Just connect a system running Norton antivirus into the Krikkit central war computer (in the absence of a Paranoid Android).
I once had a job in the state public service and we had telephone cleaners who came around every week. And a good thing too, we could have been wiped out by a disease transmitted by dirty telephones.
Variations in temperature between day and night would influence a simple chemical reaction.
But having said that, this discussion is making be rethink the whole Viking life detection issue. I wish we had an instrument on the way which could answer the question.
I just can't believe that postscript gets used for graphical user interfaces.
I read recently that the entire gulf region is a net importer of fuel because they don't have the refining capacity. So we should actually stop exporting fuel to them. Might do some good, you never know.
Or directly drive the motor so the teeth engage cleanly. Not that I believe you need a gear box with an electric motor. It should be more effective to design a better motor.
Particularly since there is a very small chance that the repair technique is totally broken for some reason. This would be the ideal opportunity to find out.
So true. A builder who my wife works for sometimes told us that he stripped the interior of an office and threw out a substantial amount of cable, then found out how much the stuff is worth.
C, Ada, Java a bit of shell scripting depending on the team you are in. Linux and Tru64 unix. Drop me a line: smithm at netapps dot com dot au. Thats my home address, not my work one.
In my experience the easiest way to find the owner of a cable is to break it and wait for the complaints.
So there may or may not have been a fire but the tech definitely drilled through a mains cable. Don't they carry instruments for that? Something which picks up 60Hz AC?
In any event it should be SOP to drill a shallow hole at first and check the cavity for cables before drilling further. Thats how I would do it anyway.
We have these speed cameras here in Australia which measure your speed over a distance by recording your travel time between two points and correlating rego plates. It had been assumed that they used some kind of OCR until a bus driver got charged with going 153 km/h (impossible for that type of bus) because the system confused plates with transposed digits, ie, AB != BA.
So is our software dyslexic? Perhaps not.
One manager I know set the clock on his laptop forward a month at the start of a critical phase in the project so that his emails sat at the head of everybody's queue for the duration.
You deserved a funny mod. Thanks for that. I feel happy and sad at the same time.
Not too hard if you have a sub-etha net connection handy. Better check that the article about The Earth which you have been working on hasn't been cut down to two words though.
Pure OO C++ code I have seen, generated direct from UML, performs hopelessly against a C equivalent because of its reliance on memory allocation.
Yes, until we run out of oil, coal, uranium, deuterium, etc. These things are all energy stores of one type or another, as is the sun. As it stands the emission of energy from the sun is unchanged by us. Until we start getting really greedy of course.
Oops your home page is crashing. Missing something called functions.inc
I should have recognised that video from The Inventors because I watched it a lot in the 1970's. Even if this DARPA team started with that invention they would still have had to do some development work, probably using better materials and working out how to validate and maintain the product. Anyway, thanks for pointing that out.
The shuttle stack effectively throttles down when the solids burn out.
One site I found says that there is a throttle down at 7:40.0 to 3G before MECO at 8:00.0 so acceleration can't be much above 3G at 7:40 and would surely not go above 5 at cut off without throttling.
5G is OK for a human crew but outside design limits for the shuttle and the shuttle/ET combination, which must be the reason for keeping it at 3G.
I think some sports cars have brake disks mounted this way, to reduce the inertia of the wheels.
Every little bit of speed helps I suppose :)
I am a bike rider and a snorkeler and this article has got me thinking about integrating some sort of power assisted snorkel with it. Swimming under water is more efficient than being on the surface, so being a metre down with fins like these would be a big advantage. You can't suck air to that depth with your lungs but it might be possible to use the motion of the rig to pump air from the surface and into a mouthpiece. Athletes already learn to synchronise breathing with body motion.
OTH it may make it possible to outrun a shark.
The monofin is longer and narrower so it has more parasitic drag. This device is more like a high aspect ratio sailplane wing, while the monofin is at best like an old style hang glider.
How far you go depends on the user. In general I think scuba gear has it easy on the oxygen supply side. The leg muscles which drive your fins can only use so much oxygen. By using muscles in the torso to push the wings up and down you do more work for more return and (probably) use more air.
For me this is a bit like the difference between open pedals and clipless pedals on a bicycle. The former case has poor power transfer and performance, but doesn't load the metabolism so it is good for Your Mum to use. Attach your feet to the pedals and you immediately need to be a lot fitter but you can go very fast and have more endurance.
Maybe we will now see people swimming the English channel under water or doing underwater endurance races.