There simply aren't enough drugs around to re-create the Beatles "talent" these days.
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I'm fairly sure gasoline engines manage 80% efficiency if you count heat output as useful.
Does the remaining 20% come out as noise? Light? Radiation?
I Wonder how much energy and exotic raw materials go into making this marvel of clean power?
I also wonder how efficient my gas-cooker is at converting gas into heat, as it doesn't seem to make any appreciable amount of anything else other than heat.
They're not sent encrypted or anything. Go read the GSM spec.
Have you *priced* Arduinos and their accessories? If you're comparing one against *any* cellphone from the Nokia 5110 upwards the processing power is lower, the IO is limited (no buttons, display, or wireless connectivity for starters) and you can fish the cellphones out of the trash or off eBay for almost nothing, probably with full-colour LCD, bluetooth, camera, maybe even GPS. The bigger problem is breaking into the phone & developing software on it.
In fact the Raspberry Pi is cheaper than a lot of Arduinos.
And how many thousands of dollars worth of skilled security researchers' time?
Having read the link, that does not really prove that dogs are useless, just that they can give false positives if the handlers lead them into it. But no-one gets prosecuted because the dog thinks they might have a bomb unless it turns out they really do have a bomb. False positives are not a big problem if the alternative is either much more thorough/time-consuming/intrusive investigation or random selection.
There's also a difference between car theives who sneak off with your stuff and car theives who are willing to risk an assault / ABH/GBH charge and the associated police response / prison sentence.
But you're right, we should go back to the police having a truncheon and a whistle and maybe a horse...
I think it's funny that google, amazon, and your bank/credit card probably know waaaay more about you than the authorities do, yet things like this get shit on in the name of freedom. If I get mugged, or burgled, or whatever, I want it to be on as many cameras as possible. CCTV is a massively EFFICIENT and EFFECTIVE way to catch criminals and make the Police and justice system's job easier and safer. With power comes responsibility, and we should be watching the watchers very closely, but not cutting off our noses to spite our face.
The issue is not the technology, the issue is how it's used and by whom. This is an excellent system for reducing vehicle crime - theft, unisured drivers, unsafe vehicles on the road, etc. that cost us all a shitload of money in taxes, insurance premiums, death. They can do this as much as they like, I'm cool with that, but I want to know that that's ALL they're doing with it, and that they're not selling my data etc. etc.
People need to stop getting all antsy about the technology and concentrate their attention / concerns / questions on HOW it's used.