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What was not a scientific finding that led to the ban on DDT?

There are inumerable examples. The time dilation effect of relativity had essentially nothing to do with the reasons for the ban on DDT. Yes, that was an important one, but it was less unassociated with DDT than the link between vitamin deficiency and scurvy, and the isotropic expansion of the universe were.


Did the nuclear test ban treaty outlaw all nuclear testing?

Short answer: no. One of the treaties in the 1960's banned above ground testing and all countries (the US, Soviet Union, France, and China) have followed that ban. The US and the Soviet Union agreed, in a separate treaty, to stop underground testing in the 1970's and both have followed that treaty. Other countries, India and Pakistan and possibly North Korea, did not agree to ban all testing and have conducted underground nuclear testing in the last ten years.


Why should tourism in Antarctica be band?

It shouldn't be banned but i think they should limit the amount of people that goes there and supervise them. Also the amount that humans have changed throughout their time in Antarctica is massive considering all of the circumstances. they leave rubbish and scare the animals i think that as no one owns Antarctica you cant ban people nor can you filter them but it should be brought tho the company's that set up cruises what damage they and the tourists are doing. no it shouldn't imagine all the fuel which we would take and how dangerous it would be


Does Sarah Ban Breathnach still live in Sir Issac Newton's chapel?

No according to her recently released book she got caught up in a bad divorce and will probably lose it if she has not already. She is back living in the U.S. with family.


Why did the airship in the hindenburg disaster use helium?

Helium was initially selected for the lifting gas because it was the safest to use in airships, as it is not flammable. At the time it was extremely expensive, and was only available from natural gas reserves in the United States. Hydrogen, by comparison, could be cheaply produced by any industrialized nation and had more lift. American rigid airships using helium were forced to conserve the gas at all costs and this hampered their operation. While a hydrogen-filled ship could routinely vent gas as necessary, a helium-filled ship had to resort to dynamic force if it was too light to descend, a measure that took a toll on its structure.Despite a U.S. ban on helium exports, the Germans designed the ship to use the gas in the belief that the ban would be lifted; when the designers learned that the ban was to remain in place, they were forced to re-engineer the Hindenburg to use hydrogen for lift. Despite the danger of using flammable hydrogen, no alternative gases that could provide sufficient lift could be produced in sufficient quantities. One beneficial side effect of employing hydrogen was that more passenger cabins could be added. The Germans' long history of flying hydrogen-filled passenger airships without a single injury or fatality engendered a widely held belief they had mastered the safe use of hydrogen. The Hindenburg's first season performance appeared to demonstrate this.