MigL

If electronic components survive the first few days, they'll last forever... As long as they have well regulated supply voltages, and are kept in the allowed temperature range. Mechanical systems, however, tend to deteriorate over time. I noticed Sensei uses a CoolerMaster power supply: It is a 'name brand' which provides good voltage regulation/transient protection. If he also keeps his system clean and well ventilated, the electronics in his computer will last long after his hard drives have crashed, his connectors have deteriorated, and its been slowed/bloated by malware/adware/Trojans/viruses. If you consider a second generation Intel i5-2xxx, you will find that it is not much slower than a seventh generation i5-7xxx.This is because Intel hasn't had any 'real' competition since the AMD Athlon, and have concentrated on reducing process size/power consumption. A 'decent' system from 6 yrs ago will keep up with most new systems except in power consumption ( laptops hold charge longer ) and gameplay ( as new graphics cards are massively more parallel ). With the introduction of the AMD Ryzen architecture, we have real competition again, and our systems may become obsolete much quicker as competition leads to quicker advances.

I didn't turn this into partisan political football, rangerx, you did. You do remember that the Liberals under J Chretien and P Martin were in power for about 4 yrs after O Khadr was taken to Guantanomo, don't you ? What exactly did they do ? Or are you conveniently forgetting that just to dump on 'evil' S Harper and Conservatives again ? Have you read the charter ? It guarantees freedom of movement to any Canadian. That means every jail sentence is in violation of a basic Canadian right ( there is also a limitations clause which allows for suspension of rights for up to 5 yrs ). Do you advocate letting all criminals/murderers out of jail or apologizing to them after release and giving them millions in compensation ? O Khadr was extradited to the US for crimes committed against an American. At that point American law takes over and he is subject to the American Justice System. Not ours or our rights, as our Charter has no standing in American courts. If they chose to put him in Guantanamo Bay according to their laws ( and no, I don't care to discuss whether those laws were just, that is for Americans to decide ), who are we to complain. Do we apologize and give restitution to other Canadians convicted in foreign countries, like Turkey or Mexico, and sent to inhumane jails for drug possession ? Or do you think people should realize that the rights granted by one society may be different from those granted by a different society ? Do you think Americans should give an apology and a huge settlement to the student who was stupid enough to go to North Korea, commit a crime, and subsequently suffer brain damage due to torture, because his rights were violated ?

OK, so he has all the rights of a Canadian as granted by the Charter. If considered a soldier/combatant, what is he doing fighting in a war against a coalition that Canada is a part of ? That used to be called treason, and was at one time ( not too long ago ), punishable by death. If a civilian, and Canadian, with all associated rights, did he not kill an American ? He can certainly be extradited and charged with murder. So what exactly is he? Sure his parents treated him badly, but they weren't there when he lobbed the grenade. That was his decision. You feel bad his rights were violated ? What about the rights of Sgt. Speer and his family ? I don't hear anyone clamoring their rights were violated. Or doesn't that fit your false narrative, ranger ?

For those who don't know, Omar Khadr is the Canadian born son of Afghan parents, who took him back to Afghanistan at a young age to train as a terrorist. There are pictures of him as a youth making IEDs. At age 15 he was involved in a firefight with American soldiers, was wounded and tossed a grenade which killed a medic, Sgt. Speer. He was taken to Guantanamo Bay, where he was interrogated by the American Government as well as the previous Canadian Liberal Government. He was held for about 15 yrs, during which time we elected a Conservative Government, and now, again a Liberal Government. He has been re-patriated for a few yrs, and now our Government has decided to issue a public apology to him, plus $10mil in compensation, for violating his charter rights. I wonder if PM Trudeau will issue an apology and compensation to the family of the victim, SGT. Speer, since the murderous act was conducted by someone PM Trudeau ( now ) embraces as a Canadian ? When did the rights of a perpetrator become MORE important than the rights of a Victim ? Or is this another case of bending over backwards to be seen to be politically correct ? Your thoughts and opinions, as always, are valued and appreciated.

You hear voices Raider ? You should get that checked out or take your meds. Seriously, different people learn in different ways. The way information is presented is also very important to the assimilation. That's why there are good teachers and some really bad ones.

Coefficient of lift is empirically derived through wind tunnel testing, originally by NACA, now NASA, but most manufacturers have their own modifications to standard profiles, which are optimized for specific circumstances/missions. One profile whose Cl is probably in the public domain is the standard 'Clark Y' profile. ( at one time I could have given you the NACA number, I think it was something like be 6xx45 ??? but I don't recall )

Definitely a rip-off that's been going on far too long, that unfortunately will never stop. You see it in daily life also; a contractor will do private work for a certain price, but if doing similar/equivalent work for the municipality, they 'pad' the bill because the municipality has deeper pockets. Or the price a business pays for computers/office supplies as compared to a private person. They do it because they can.

This isn't new. I still remember the 1980s stories of Lockheed Martin charging the Air Force $300 for a 'specialty' adjustable wrench to use on their planes, and Boeing likewise charging the Air Force $600 for toilet seats in the AWACS ( E-3 Sentry aircraft ).

Really ? So YOUR proof is to actually multiply it out for each number from 3 to infinity ? Indulge us, then. Show the proof that it doesn't work for n=99999999999999999999. We'll wait several months. Then you can start on n+1 !

That's correct Mordred. In the equation E=gamma[mc^2] where gamma is the Lorentz factor, when v>c, the Lorentz factor is the root of a negative number. For the energy to be a real, positive value, then, m has to also be imaginary. Alternatively, if m is real and positive, then the energy has to be imaginary.

IIRC, tachyons arise because in SR, when v>c, the root is imaginary; the mass must, then, also be imaginary, because energy needs to be real. Yet your link states that recent treatments use a real mass. I find it hard to reconcile the two. Guess I'll need to do some reading

May I suggest that the only thing that was shifted was several pints ( or more ).

Silvestru is not advocating spending less money for services. He is suggesting it be spent more wisely and transparently. And, to be honest, he has a point, but whether his system of payments to service providers would work as he expects is doubtful. There are plenty of cases of Governments bringing in a new tax for some specific purpose, which then gets dumped into a 'slush fund', and re-purposed for some partisan pet project. In my home town of St. Catharines a sewer surcharge was added to the water bill, essentially doubling it since you pay for water coming into the house as well as going out, because our municipal government said the sewer system was in disrepair and hadn't been worked on since the 50s. Well, other than general repairs for immediate problems, no work has been done to improve/expand the sewer system in the 30 yrs since the 'tax' was introduced. All money collected went into general revenue and was used for other things. Not very transparent is it ? There are gas taxes specifically to improve roads and mass transit. There are tire taxes to dispose of old tires. There are vehicle emission tests, which don't check emissions anymore. Etc.,etc. All these moneys are repurposed as the government deems appropriate. Yet no one gets to vote on these decisions. Like I said, not a good system. But not sure any of the alternatives would be any better, and may be much worse.

I suggest looking up the meaning of treason, H Andy, none of the scenarios you suggested amount to treason, which is possibly why the charges won't stick to T Blair. Most European countries ( and Canada ) belong to a mutual protection treaty called NATO. That means an attack on any one country is an attack on all of them. I would assume that makes Poles, Estonians, Latvians, Hungarians, Romanians and Slovakians sleep better at night; And would have helped keep Ukraine whole. I would gladly pay more taxes for my armed forces to keep V Putin out of Eastern Europe, Sensei. Haven't you noticed that Komrade Vladimir likes wearing his Bear suit lately ? And finally to the OP... Taxes are like government and democracy. Not a good system by any means, but much better than the alternatives.

I have mixed feelings about this... Don't know whether to laugh at you or feel sorry for you. You obviously use a computer, which puts a lot of information at your fingertips, yet you don't inform yourself of the simplest scientific facts ?

All lifting ( unless using some kind of propulsion system ) involves a levering action. What would you stand on to lift a tectonic plate ?

I might add that I live 12 minutes away from the American border, and have never feared Americans, even now. Ask the Ukrainians how they feel about the Russians. Or the Tibetans and Taiwanese about the Chinese. Or should I go back through history and name all the forgotten small countries that lived beside a 'superpower'. Edited ( because people at my work are jokers, and add comments when I leave for an emergency )

Wow ! Koti gets dumped on for making a joke. ( which I got, and found humorous, by the way )\ While sensei is totally off topic and everyone falls all over themselves to agree with him. Tell me what other superpower during the last 2000 yrs has been as benevolent as the US during the last century ? Assyrians, Phoenicians, Romans, Germanic empires, Napoleonic empires, Hapsburg or USSR ? Or even the British ? No other has helped the rest of the world as much as the US, although at times they have slipped up. ( like when they voted in D Trump )

What are they after ? Reproduction of their species, i.e. survival.

I didn't get the memo... Today must be rant day.

The problem is NOT that you ask dumb questions, as there is no such thing as a dumb question ( although they may be ill posed ). The problem is the wild-ass assertions you make subsequently, that have no basis in Physics.

That being said, about a month or two ago, someone posted about the longest sniper shot on record, at over two miles, where curvature of the Earth had to be accounted for. Which means there was non-negligible drop off of the Earth's surface, in which case, a longer drop, and therefore, longer time to hit the ground. Incidentally, three of the five longest recorded sniper kills on record, are by Canadians. ( don't mess with us )

A graviton will interact with other gravitons, unlike other bosons. Can it gain/lose energy in that way ? ( It interacts with its own virtual particles: that interaction gives rise to the non-renormalizable infinities that don't allow for quantization )

Maybe you should have read Wikipedia before you started preaching all your wrong assertions about virtual particles and fields.

You just said that light, crossing a void that has expanded, is red-shifted. Then you accuse me of being wrong, and say that light which was emitted at a temperature of several thousand degrees ( which does not allow protons to combine with electrons ), is NOT red-shifted down to an equivalent temperature of 2.7 degrees by an expansion of over three orders of magnitude. I think you're a little confused.