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Comment Motion sickness is protective. (Score 1) 154

The brain gets lots of sensory input. It has evolved some kind of input validation procedure. The inner ears are sending information about which direction is up and which is down. We are also getting visual input, from which you can deduce the "up" direction. The trees and shrubs in the jungle, pillars, walls of the building etc tell the "up" direction. The brain expects them to be in synch. When they contradict one another, it could be due to some poisonous thing one has eaten. So throwing up is a reasonable reaction.

Of course as with any evolutionary biology explanation, the brain did not reason it out. It the past the bodies that had a nausea response to contradiction between visual and inner-ear cues of direction of gravity survived better and passed on their genes to us.

Comment Will have no effect in the company (Score 1) 383

All those people who can make a difference have are all gone, pushed out, cashed out or burnt out. It is PHBs all the way up and all the way down. What salary they save will be paid out as bonuses to the executives. It was going nowhere with N people, now it will get there faster with (N - 18000) people.

Comment Re:Improving cooking is not easy. (Score 1) 204

oops hit submit too soon.

The flare pot looks nice and it might improve heat transfer. If the interior is also fluted, it would be very difficult to keep clean. The exterior flukes have nice large radius of curvature so should be easy to clean, but still not as easy to clean as the regular smooth pans. Food in contact with the wall might heat up too quickly and not transfer the heat to rest of the food. Food away from the wall might be undercooked and the food in contact with the wall might char. It is probably suitable for soups and broths. But for cooking rice and such not very liquidy food, heating the wall too rapidly would be a problem.

Comment Improving cooking is not easy. (Score 4, Interesting) 204

Back in my undergrad days I worked on a ducted windmill and my friend worked on improving the firewood stoves used by typical rural south Indian womenfolk. A circle of stones with an aluminium pot on top was what he was trying to "improve". Did some clay based sealing of gaps and nice clay ring to set the pot on top with carefully created vents. All using plain stones and clay. Was able to raise the efficiency of heat transfer to the pot. No material to buy at all, just stones and clay.

Well, field trials revealed that he was too good and raised the temperature to nearly the melting point of aluminium! The flue gases and soot abraded the bottom of the pots and they started leaking in just a few sessions. The older inefficient method wasted firewood, but the pots lasted longer.

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