Hardly "all your money". It is estimated the amount of engineering research effort required to build a fusion generator that will produce power is on the order of US$80 billion. It sounds like a lot, but it's only 11% of the cost of the cheapest estimate of what the Gulf War cost. And the Gulf War didn't work.
Hazard of a radioactive material isn't merely how "hot" it is, but also how biologically active it is. Radium, while outside the body, isn't a particular problem (IIRC an alpha emitter), if it gets inside you your body uses it like calcium so it stays in your bones, irradiating you from the inside, for a large amount of time. Tritium on the other hand doesn't linger in the body, it remains for a fairly short time period, so ends up being a lot less dangerous than some much-less-hot radioactive elements that would end up getting incorporated in the body.
But a super soaker will likely cause one or more of the ESCs to fail - electronics generally stop working properly when wet (it can maintain a stream of water for some time). Add a little bit of salt to make the water more conductive just to be sure.
And Oracle is fscking awful in this regard. Their licensing is so complex it's difficult to know what exactly you need.
We narrowly escaped having to use Oracle a while back - we were being dragged into a project with a dependency on Oracle. Oracle itself is very good - it's powerful, flexible and comprehensive, it scales well, there's lots of ways you can optimise the performance to your particular installation, but the licensing is something else. This was one of the reasons we canned the project (after a near miss - management had a huge hard-on for it).
Oracle will also sue its own customers. Normally, suing your customers is bad for business, but not for Oracle. A certain part of the public sector (not UK, but close) that we often have dealings with is a user of Oracle, and despite paying handsomely for their Oracle license, someone had screwed up somewhere so Oracle sued them. They can do this because once you've been running Oracle for a while and your developers have taken advantage of plenty of Oracle specific features, you experience a degree of lock-in to Oracle that Microsoft can only dream about. They had mis-interpreted what their license allowed, and Oracle disagreed with their usage, and turned around and sued them. With other companies, if they didn't negotiate politely and sued you, you can say "OK, we won't buy your product any more". But the degree of lock-in when you've designed a system around Oracle means you have to do what Oracle tell you, and you have no negotiating power. So if you try to negotiate better terms in these kind of situations, they'll just sue you knowing full well that you have no option but to continue spending money with Oracle anyway.
I doubt that a single modern electric car motor is a brush/commutator type DC motor. Everything in use now will be electronically commutated brushless motors.
Good grief, who designed that? I'd have to imagine 2 capacitors and a 7805 linear regulator would work out cheaper and perform better than all those diodes in series for whoever was making it.
Double isn't anywhere near enough. I did some experimentation with a solar panel and decided it was not worth it. From memory: the results
* Cloudless day, sun perpendicular to panel - full rated power * Cirrus clouds, with shadows still being cast - about 60% rated power * Bright overcast day with faint shadows - about 40% rated power * Bright overcast day with no shadows - about 20% rated power * Heavy overcast day - about 5% rated power
Solar is great if you live somewhere where you frequently get completely cloudless days, especially if you have a sun tracking device (power very rapidly falls off when the sun gets more than about 30 degrees off direct). But anywhere where clouds are frequent it's just not cost effective. Even haze makes a measurable reduction on the power you get.
> There are no wealthy actors, musicians, authors, or anyone in the tech industry? Huh, guess I'll go buy me farm.
There are, but they all required land to do it. Musicians need food and shelter to make music, this requires land. Every cent of wealth generated in all of history can be traced back to the land (or sea) and until we can practically leave the planet, this constraint will remain.
It's entirely irrelevant when we're talking about 44.1kHz audio, which is what we are. The cable would have to be ghastly to the point of basically not working at all to bugger up 44.1KHz audio, even uncompressed (which is only 1.5Mbit/sec)
The question is: is the signal-to-noise ratio good enough? If so a cheap cable that passes the data is every bit as good as an expensive one, so long as the packets arrive intact at the other end.
Ethernet already does a lot to counter noise. The signals are differential pairs (so instead of having ground and signal, you have signal+ and signal-). The wire pairs are twisted, which keeps them in close proximity. Interference tends to be common mode noise (so for two wires close together it will affect the signal in each wire almost the same), and differential amplifiers are designed to only amplify the difference between the two wires and will therefore reject common mode noise. Each end also has an isolating transformer, and each end has proper termination (to avoid things like reflections which can bugger up signal integrity). It takes a significantly terrible out-of-spec twisted pair cable to make ethernet stop working.
Incidentally, the signalling for 100baseTX ethernet only has a fundamental frequency of 31.25MHz (naively people would expect 1MHz per 1Mbps but this is not so). 100baseTX uses a 3 level (in other words +1, 0, -1) non return to zero signalling (in other words, a 1 will cause the signal to change level and a 0 will cause the signal to remain at the current level - or it might be the other way around, it's a long time since I did this stuff). Each 4 bits is encoded into a 5 bit symbol designed to prevent long runs of 0s (which would cause the signal level to remain constant for too long). Lots of people call an ethernet connection a "broadband" connection, but it's not, it's baseband (hence the "base" in 100baseTX).
I'd have to question that (not that she has to do it or the reasons she was told, but the supposed reality that elders can't read normal text as well as caps). One of the pieces of research that was done here in the 1950s resulted in motorway road signs in the UK being in mixed case rather than all caps - it caused howls of anguish from old-timers resistant to change - but the thing is words with lower case text have more of a shape - for instance "Manchester" can be resolved as the word "Manchester" much faster than "MANCHESTER" - it was found you could read the mixed case before you could even resolve all the letters because you could recognise the shape of the word, given that lower case text has more features like ascenders and descenders. Hence all UK road signs ever since have been in mixed case.
Drones are subject to the same rules that RC aircraft are subject to.
It is however extremely hard to enforce. RC users are generally pretty responsible - they've probably spent many hours building their aircraft, and during this time it has sunk in the dangers they can pose, and usually they've joined a local club to help them learn to fly their new expensive aircraft and the club will also coach them on safely operating their aircraft.
Drone users not so much. Many of the ready-to-fly drones require pretty much zero skill to operate, so people can take off and cause mischief pretty much straight away.
Or put simply: extraordinary claims require extraordinary evidence. We have an extraordinary claim here - highly extraordinary - but the evidence falls very very far short of being even just ordinary, let alone extraordinary.
I would have thought the answer to that is obvious: most guns with folding stocks are a lot easier to conceal, and someone wanting to do something bad with a rifle would want to take one that they can conceal en-route. An old Lee-Enfield 303 with a wooden stock isn't so easy for the school shooter to conceal on his way to committing the crime.
This sounds awfully familiar...OpenSSL had a critical vulnerability because they had decided to write a custom allocator instead of using the one provided by the OS. You would think IE developers, with their product being WIndows-only and strongly tied to Windows would never dream of reinventing the allocation wheel, especially as Windows memory management in general has had a huge amount of work done on it in the last few years to make it harder to exploit memory allocation bugs.
I would say 'no' where I live now. Although there is a bus stop almost outside my house, it takes three times as long to get to work by bus than it does to drive - my drive being around about 20 minutes, and the bus journey (plus walk at the end) being an hour. I can actually beat the bus journey on my bicycle, and it's 12.5 miles (hilly miles, too). The bus not only goes "around the houses" taking a route much longer and slower than my direct route, it stops all the time, and it only goes within a mile of my workplace. It would be 1.2 hours every day longer on the daily route to work.
On the other hand if I lived in a big city such as Madrid I wouldn't even bother owning a car, regardless of whether public transport was free or not. The car becomes more of a liability than an asset once you live in a densely populated city.
We likely don't know the full story here. I suspect it could have gone like this:
* Someone has their phone plugged into a socket labeled 'Not for public use'. * PCSO notices, says "SIr, can you unplug your phone, that socket isn't for public use". * Man gets belligerent and argues with the PCSO and refuses to unplug.
No mention of Concorde in the summary, which could do this at over Mach 2?
How have the economics changed that this will be viable where Concorde wasn't? IIRC, British Airways only managed to fly it profitably because they got the aircraft for £1 each. Concorde's engines were thermodynamically very efficient when in supercruise, and the aircraft burned as much fuel as a B747 while hauling only about 1/4 to 1/3rd of the passengers. I don't think there's much that can be done to get the fuel burn down per passenger seat, and due to the nature of supersonic flight it's always going to be more of a maintenance nightmare than a subsonic airliner.
When I was at school (tr:US high school) we had a 2 litre coke bottle three quarters full of the stuff. Just sitting there in our study room...
We had bought the iodine at one chemists shop, then gone to another to get the ammonia (buying both in the same shop seemed like a bad idea to us) and then made it by the litre. I dread to think what it would have done if it had dried out.
You also have to mix the methane with the right amount of oxygen (so you'll end up with much more than 1cu.ft gas to make an explosive mixture). The other consideration is delta-t: how quickly does the stick of dynamite's reaction complete, compared to the equivalent energy of methane/oxygen mix?
I suspect processed foods are not harmful. A raw food diet is a lot likely to be less optimal (basically, cooking - which is processing food - is what made us human: processing our food allowed us to break it down a bit meaning a simpler, more efficient digestive process, allowing us to have larger brains).
If you cook from fresh ingredients, guess what you're still eating processed food. Just because the food processing happened in your home, doesn't mean it's not processed food. It doesn't matter where the processing occurred - in your home, in a factory, or wherever, so long as the food doesn't contain excessive quantities of crap. I think the real answer is avoid crap foods. Foods with large quantities of refined sugar for example. I think the main things of home cooking (processed foods processed in your home) is that you know what went into the process so it's easier to avoid the crap simply by not adding it to the recipe.
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Hardly "all your money". It is estimated the amount of engineering research effort required to build a fusion generator that will produce power is on the order of US$80 billion. It sounds like a lot, but it's only 11% of the cost of the cheapest estimate of what the Gulf War cost. And the Gulf War didn't work.
Hazard of a radioactive material isn't merely how "hot" it is, but also how biologically active it is. Radium, while outside the body, isn't a particular problem (IIRC an alpha emitter), if it gets inside you your body uses it like calcium so it stays in your bones, irradiating you from the inside, for a large amount of time. Tritium on the other hand doesn't linger in the body, it remains for a fairly short time period, so ends up being a lot less dangerous than some much-less-hot radioactive elements that would end up getting incorporated in the body.
But a super soaker will likely cause one or more of the ESCs to fail - electronics generally stop working properly when wet (it can maintain a stream of water for some time). Add a little bit of salt to make the water more conductive just to be sure.
They call it a penny, that's it's actual name and it says "One penny" on the coin.
And Oracle is fscking awful in this regard. Their licensing is so complex it's difficult to know what exactly you need.
We narrowly escaped having to use Oracle a while back - we were being dragged into a project with a dependency on Oracle. Oracle itself is very good - it's powerful, flexible and comprehensive, it scales well, there's lots of ways you can optimise the performance to your particular installation, but the licensing is something else. This was one of the reasons we canned the project (after a near miss - management had a huge hard-on for it).
Oracle will also sue its own customers. Normally, suing your customers is bad for business, but not for Oracle. A certain part of the public sector (not UK, but close) that we often have dealings with is a user of Oracle, and despite paying handsomely for their Oracle license, someone had screwed up somewhere so Oracle sued them. They can do this because once you've been running Oracle for a while and your developers have taken advantage of plenty of Oracle specific features, you experience a degree of lock-in to Oracle that Microsoft can only dream about. They had mis-interpreted what their license allowed, and Oracle disagreed with their usage, and turned around and sued them. With other companies, if they didn't negotiate politely and sued you, you can say "OK, we won't buy your product any more". But the degree of lock-in when you've designed a system around Oracle means you have to do what Oracle tell you, and you have no negotiating power. So if you try to negotiate better terms in these kind of situations, they'll just sue you knowing full well that you have no option but to continue spending money with Oracle anyway.
I doubt that a single modern electric car motor is a brush/commutator type DC motor. Everything in use now will be electronically commutated brushless motors.
Good grief, who designed that? I'd have to imagine 2 capacitors and a 7805 linear regulator would work out cheaper and perform better than all those diodes in series for whoever was making it.
Double isn't anywhere near enough. I did some experimentation with a solar panel and decided it was not worth it. From memory: the results
* Cloudless day, sun perpendicular to panel - full rated power
* Cirrus clouds, with shadows still being cast - about 60% rated power
* Bright overcast day with faint shadows - about 40% rated power
* Bright overcast day with no shadows - about 20% rated power
* Heavy overcast day - about 5% rated power
Solar is great if you live somewhere where you frequently get completely cloudless days, especially if you have a sun tracking device (power very rapidly falls off when the sun gets more than about 30 degrees off direct). But anywhere where clouds are frequent it's just not cost effective. Even haze makes a measurable reduction on the power you get.
> There are no wealthy actors, musicians, authors, or anyone in the tech industry? Huh, guess I'll go buy me farm.
There are, but they all required land to do it. Musicians need food and shelter to make music, this requires land. Every cent of wealth generated in all of history can be traced back to the land (or sea) and until we can practically leave the planet, this constraint will remain.
It's entirely irrelevant when we're talking about 44.1kHz audio, which is what we are. The cable would have to be ghastly to the point of basically not working at all to bugger up 44.1KHz audio, even uncompressed (which is only 1.5Mbit/sec)
The question is: is the signal-to-noise ratio good enough? If so a cheap cable that passes the data is every bit as good as an expensive one, so long as the packets arrive intact at the other end.
Ethernet already does a lot to counter noise. The signals are differential pairs (so instead of having ground and signal, you have signal+ and signal-). The wire pairs are twisted, which keeps them in close proximity. Interference tends to be common mode noise (so for two wires close together it will affect the signal in each wire almost the same), and differential amplifiers are designed to only amplify the difference between the two wires and will therefore reject common mode noise. Each end also has an isolating transformer, and each end has proper termination (to avoid things like reflections which can bugger up signal integrity). It takes a significantly terrible out-of-spec twisted pair cable to make ethernet stop working.
Incidentally, the signalling for 100baseTX ethernet only has a fundamental frequency of 31.25MHz (naively people would expect 1MHz per 1Mbps but this is not so). 100baseTX uses a 3 level (in other words +1, 0, -1) non return to zero signalling (in other words, a 1 will cause the signal to change level and a 0 will cause the signal to remain at the current level - or it might be the other way around, it's a long time since I did this stuff). Each 4 bits is encoded into a 5 bit symbol designed to prevent long runs of 0s (which would cause the signal level to remain constant for too long). Lots of people call an ethernet connection a "broadband" connection, but it's not, it's baseband (hence the "base" in 100baseTX).
Yes. Switching computers on my KVM switch (scroll lock + console number)
I'd have to question that (not that she has to do it or the reasons she was told, but the supposed reality that elders can't read normal text as well as caps). One of the pieces of research that was done here in the 1950s resulted in motorway road signs in the UK being in mixed case rather than all caps - it caused howls of anguish from old-timers resistant to change - but the thing is words with lower case text have more of a shape - for instance "Manchester" can be resolved as the word "Manchester" much faster than "MANCHESTER" - it was found you could read the mixed case before you could even resolve all the letters because you could recognise the shape of the word, given that lower case text has more features like ascenders and descenders. Hence all UK road signs ever since have been in mixed case.
Drones are subject to the same rules that RC aircraft are subject to.
It is however extremely hard to enforce. RC users are generally pretty responsible - they've probably spent many hours building their aircraft, and during this time it has sunk in the dangers they can pose, and usually they've joined a local club to help them learn to fly their new expensive aircraft and the club will also coach them on safely operating their aircraft.
Drone users not so much. Many of the ready-to-fly drones require pretty much zero skill to operate, so people can take off and cause mischief pretty much straight away.
Or put simply: extraordinary claims require extraordinary evidence. We have an extraordinary claim here - highly extraordinary - but the evidence falls very very far short of being even just ordinary, let alone extraordinary.
I would have thought the answer to that is obvious: most guns with folding stocks are a lot easier to conceal, and someone wanting to do something bad with a rifle would want to take one that they can conceal en-route. An old Lee-Enfield 303 with a wooden stock isn't so easy for the school shooter to conceal on his way to committing the crime.
This sounds awfully familiar...OpenSSL had a critical vulnerability because they had decided to write a custom allocator instead of using the one provided by the OS. You would think IE developers, with their product being WIndows-only and strongly tied to Windows would never dream of reinventing the allocation wheel, especially as Windows memory management in general has had a huge amount of work done on it in the last few years to make it harder to exploit memory allocation bugs.
It really depends on where you live.
I would say 'no' where I live now. Although there is a bus stop almost outside my house, it takes three times as long to get to work by bus than it does to drive - my drive being around about 20 minutes, and the bus journey (plus walk at the end) being an hour. I can actually beat the bus journey on my bicycle, and it's 12.5 miles (hilly miles, too). The bus not only goes "around the houses" taking a route much longer and slower than my direct route, it stops all the time, and it only goes within a mile of my workplace. It would be 1.2 hours every day longer on the daily route to work.
On the other hand if I lived in a big city such as Madrid I wouldn't even bother owning a car, regardless of whether public transport was free or not. The car becomes more of a liability than an asset once you live in a densely populated city.
We likely don't know the full story here. I suspect it could have gone like this:
* Someone has their phone plugged into a socket labeled 'Not for public use'.
* PCSO notices, says "SIr, can you unplug your phone, that socket isn't for public use".
* Man gets belligerent and argues with the PCSO and refuses to unplug.
No mention of Concorde in the summary, which could do this at over Mach 2?
How have the economics changed that this will be viable where Concorde wasn't? IIRC, British Airways only managed to fly it profitably because they got the aircraft for £1 each. Concorde's engines were thermodynamically very efficient when in supercruise, and the aircraft burned as much fuel as a B747 while hauling only about 1/4 to 1/3rd of the passengers. I don't think there's much that can be done to get the fuel burn down per passenger seat, and due to the nature of supersonic flight it's always going to be more of a maintenance nightmare than a subsonic airliner.
I think you can still buy it in gardening stores here.
When I was at school (tr:US high school) we had a 2 litre coke bottle three quarters full of the stuff. Just sitting there in our study room...
We had bought the iodine at one chemists shop, then gone to another to get the ammonia (buying both in the same shop seemed like a bad idea to us) and then made it by the litre. I dread to think what it would have done if it had dried out.
You also have to mix the methane with the right amount of oxygen (so you'll end up with much more than 1cu.ft gas to make an explosive mixture). The other consideration is delta-t: how quickly does the stick of dynamite's reaction complete, compared to the equivalent energy of methane/oxygen mix?
Probably athlete's foot. There's cream for that.
I suspect processed foods are not harmful. A raw food diet is a lot likely to be less optimal (basically, cooking - which is processing food - is what made us human: processing our food allowed us to break it down a bit meaning a simpler, more efficient digestive process, allowing us to have larger brains).
If you cook from fresh ingredients, guess what you're still eating processed food. Just because the food processing happened in your home, doesn't mean it's not processed food. It doesn't matter where the processing occurred - in your home, in a factory, or wherever, so long as the food doesn't contain excessive quantities of crap. I think the real answer is avoid crap foods. Foods with large quantities of refined sugar for example. I think the main things of home cooking (processed foods processed in your home) is that you know what went into the process so it's easier to avoid the crap simply by not adding it to the recipe.