Biggest engineering mistakes in audiophile gear

On population it's worth reading the works of the late Hans Rosling (or watch his Ted talk if you don't like reading).



As for renewables. Yes, in the last 15 years a lot of farmers have given up getting grants for planting wheat and taken grants for planting solar panels. But this has had a beneficial effect of driving prices down to the point where grants can be phased out. The spot price is still high compared with coal or gas, but comparable with new nuclear. This is a good thing and one (small) piece of the puzzle. Many other bits are needed to reverse the rape* of this planet, but I have faith in the younger generations to start doing the right thing.



*Ok strong word, but for the last 150 years there has been little thought of consequence.


Aside: I've not found complete references but sometime in the past Europe was in danger of deforesting itself for home heating, which is apparantly why europeans adopted stoves whilst coal rich UK had wasteful open fires. May be untrue, but I have to say I love the scandiavian soap stone stoves.
 
Oof, that is depressing news indeed. Although the tone of the article (at least its English translation) leads me to believe there is significant bias by the author or editing team.

Well, there's always solar (cooked birds means free food for the maintenance workers) or off-shore wind. 🙂
 
Bird charity warns of harm from new wind farm - BBC News there are people studying how birds navigate wind farms.



Insect loss is a complex issue of course. One could just as well blame agricultural policy for allowing kilotons of insect killer to be dumped on fields every year to keep the obesity crisis going (note tongue firmly in cheek).



I have an uninvited honey bee hive in my chimney and invited solitary bees in a bug hotel. Huge fun to show the kids as they build their brood plugs. But I like my garden to be an eco system. If only the toads were not total slackers who don't eat enough slugs.
 
You know what? I read this previously as "stimulated" 🙂 Thinking stimulated to learn, study etc. so very positive. I only now read it again to read "simulated" 😉

It is sad to see those wanting children not being able to have them and some that are able neglecting theirs. There was a documentary here about 2 disabled parents with addiction habits and very low intelligence that kept on making babies and every single child was taken away as they did not know how to handle a baby. The father was interviewed and he said:"we will go on till we are allowed to keep one". AFAIK only one of the daughters was "normal' now even taking care of her own mother that only likes to use social media and smoke. It really made one think that it would sometimes not be a bad idea to test people if they are up for the task.... Others even wanted forced birth control which is quite drastic.

Hoe vergaat het met het probleemgezin uit de film Moederliefde? | de Lagarde

It's a bit like guns, after a shooting a teacher was asked if he'd keep a gun in his desk, he replied " no, a school is no place for a gun ", most of the people responsible enough to own a gun, wouldn't have one, a lot of people who shouldn't have kids do, whilst lots who would be good parents don't. But I guess only a TINY minority of parents are as bad as the above example.
Japan seems to have cracked the population problem, look at their live population clock.
 
Japan seems to have cracked the population problem, look at their live population clock.
I have no idea where you get that from. They have a huge problem with an inverted demographic at the moment. The normal solution to this is immigration. Hungary has an interesting take to a falling fertility with no income tax for life if a woman has 4 or more children.



Logan's run anyone?
 
Hello Pano,
If you cycle regularly , dont smoke and take care of your BMI all those bumps in your state wont be that much of a challenge.
Of course dont get tempted to get an electric bike. Here everyone is buying them. I only would consider one if i need to commute a big distance on daily basis.

If you cycle regularly, don't smoke and take care of your BMI, but still want to die young, electrical bikes are your ticket.

Your risk of dying is 4 times that of riding a regular bike. I ride a lot through the dunes and it is quite an experience to have octogenereans pass you by at double the speed you can reach by peddeling hard.
 
Not audio, but digital electronics of the 70s.
Some stupids had decided the entire system was to use CMOS for low power consumption, then ran it at a highest clock speed for this technology.
These early CMOS had terrible loose timing specs, so there was little hope for reliable operation. They had no idea what that mean anyway.
No need to say that TTL LS ( low power Schotky ) was available at that time, well known, with tight specs. Regular TTL was actually ok for the job.
This terrible design mistake induced two years of extremely tough debugging work.

This is how I learned what is inside a computer in great detail. I had a Apple II clone in Japan that broke down for a third time after having been repaired twice. Bought a second hand oscilloscope in Akihabara and found that one of the dividers in the timing circuit was broken. Exactly for the reason described above. Fortunately took me less than 2 years to figure it out.
 
I do not have any.
All I see in ecology is more taxes and total ignorance of the laws of physics. Everything electric is all wrong. Total arrogance, they know it all, their lobbies are obnoxious.


You misread me. By younger generations I mean those coming into adult hood, not those already part of the problem. I hang around young people. I fear a number of people who post on here have not seen anyone young close up for years from what they post!
 
If you work in the field it is a habit, young or old. People that only know the public information are always satisfied when the words are nice and the message is that it is better for the world. As much money can be made the marketing is quite good but the devil is in the quite large (elephant sized really) details.

The dutch environmental professor that wants us to stop using natural gas wanted to be THE example as he is the "practice what you preach' type of guy. He is the guy that advises the government. Recently he was interviewed in which interview he admitted that after many unrealistic very large investments (I recall 85,000 Euro in total) he had not succeeded in making his home gassless. Meanwhile the electric heat pumps have been forcedly introduced and new houses are not allowed to have a natural gas connection. The consumption of natural gas of the population is only 11%.

The industry knows 1 extremely large natural gas consumer with 2 billion m3 per year which recently got its license prolonged till 2023. This company produces fertilizer for mainly export to Africa making the soil there less fertile in time. Farmers here get fines because they have live stock producing manure....which could be transported in the same ships to Africa making the soil better there while not wasting the natural gas ... Of all the green houses only 25% has double glazing and they all keep burning very large quantities of natural gas for important things like flowers. Double glazing is practically standard for homes as we otherwise "spoil the world by wasting natural gas" is the slogan. At the same time the gas valve to our own people will be closed in time..... Export of the gas also still continues for absurdly low prices to countries where no one gives jack **** about environmental issues and since it is also almost free to them they burn it with pleasure.

The citizens have a portion of the income lost to very high taxes on gas because they burn natural gas and now even lies like "fine dust particles" are spread to convince the public that one is a criminal burning natural gas. So if is being burnt elsewhere that is greener? Just an example of how citizens are alway supposed to correct for errors elsewhere forced by decisions made by people who don't know enough about the things they decide. In short: the EU.
 
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People objecting to a critical view on matters and/or refusing to acknowledge simple facts are either involved themselves in politics or the green business model otherwise they are naive.

Everything supposedly better for the environment should be viewed and calculated with short term and long term outcomes. By a team of experts in all the involved disciplines not by politicians and businessmen. Once the calculations and outcomes are proven only then decisions should be made.

All too often recent decisions turn out to be less positive than predicted/assumed before and sometimes the outcome is even detrimental/worse than the previously supposed bad way off doing things.
 
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Note that the function of the rather thick base on most heat sinks is to ensure that rapid changes in heat production by the attached device(s) can be absorbed and "buffered" before conducting to the fins and being dissipated.

You don't want it to be buffered, you want it to be dissipated as fast as possible. Buffering (if that is what it would do) would only raise the temp of the main body over the fins.

Compare it to a series of resistors. The voltage (or heat in this case) divides depending on the (thermal) resistance. No resistor in a string will 'buffer' the voltage before dividing over the rest ;-)

Jan