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General Science / Re: Oxygen levels In A packed Train. Is There Always Enough ?
« on: 07/02/2025 12:13:58 »Imagine these guys stuck in a tunnel for long, and not even a looJust like the slave ships.
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Imagine these guys stuck in a tunnel for long, and not even a looJust like the slave ships.
I rather doubt you saw anyone drop francium into water.Where did I say I saw someone drop francium in water?
not-naturally occurring francium (ever heard of that?)Lithium, Sodium, Potassium, Rubidium, Caesium, Francium, one of the few things I remember from school chemistry lessons, mainly because they put on a good show when you drop them in water.
Try adjusting the transducers on the head as this can have a dramatic effect on conducted sound level. Perhaps you aren't getting good contact or not in the best place, very small changes can make a big difference.
But the quantities of single-use plastic, not to mention diesel and gas, involved in all this now-standard treatment, would have alarmed any member of Just Stop Oil to the point that they would have been moved to destroy a work of art or cause a traffic jam. So instead of imposing 5-year jail sentences on these narcissistic middle-class hooligans, why don't we just transport them (by rowing boat) to an island where there is no oil or oil products, and let them live as long as their consciences dictate?
I've just been discharged from a short but intense hospital stay. May the Lord have mercy on future patients when we ban single-use plastics!My guess would be that a large majority of the huge islands of floating plastic waste in the sea is consumer goods, not medical waste.
Artificial ferrites started in about 1930 and became commercially useful by about 1945.The world's first radio factory opened in Hall Street, Chelmsford in January1899, five years after Oliver Lodge first communicated using radio waves. Radio was used during the Titanic rescue in 1912, and the world's first entertainment broadcast was made in 1920.
Biowaste is a more reasonable source although the feedstock is limited in quantity.The problem with fuel from biowaste is that it's dependent on waste for its supply of raw material, and the economics depend on someone writing off the cost when the food is thrown away. Without that write-off, it's about ten times more expensive than petrol, even with 100% conversion efficiency.
The Ford Pinto, a petrol(gasoline) car was prone to self cremation, as far as I remember.Pintos caught fire because the tank ruptured in a rear end crash. There was famously the scandal when the cost-benefit memo was leaked showing that it was cheaper to keep paying compensation to the victims than modify the car.
The perceived difference in risk is due to the fact that ICEs don't spontaneously combust. The usual point of unintentional ignition occurs when a poorly-maintained vehicle has been running fast and hot, the fuel line comes adrift or the carburettor (remember those?) floods, and a backfire on overrun blows flames out of the air intake.I doubt that. I'd say more fires are fairly spontaneous electrical faults (unless the regular servicing schedule entails checking every electrical contact in the car for corrosion/looseness/overheating).
There is probably nothing incorrect in that ode to the EV but it paints a misleading picture. Okay, an ice will max out at ~40% but the other 60% is available for heating the vehicle whereas an EV which is already 40% down in these cold temperatures will have to use a lot of battery power just to maintain a survivable environment- just what the range will be I don't know but it will be impaired. I cannot imagine fuel consumption increasing during a cold snap unless road conditions prevent the vehicle from reaching an efficient speed/gear ratio. Cold dense air generally improves the efficiency of an ice.