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Who said: “The conservation of natural resources is the fundamental problem. Unless we solve that problem it will avail us little to solve all others.”
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Home > Category Index for Science Quotations > Category Index S > Category: Sonar

Sonar Quotes (2 quotes)

Overfishing—really easy to do with megaships equipped with sonar for fast fish finding—and the eventual result is no fish. When smaller boats were still in use, fisheries were sustainable, more or less. But in the past forty years, hyper-efficient hi-tech practices have put paid to a third of the productive ocean. … Now you've got bigger and bigger boats chasing smaller and fewer fish.
In Payback: Debt and the Shadow Side of Wealth (2008), 191.
Science quotes on:  |  Easy (56)  |  Efficient (20)  |  Fish (85)  |  Ocean (115)  |  Overfishing (25)  |  Sustainable (7)

The point [is] largely scientific in character …[concerning] the methods which can be invented or adopted or discovered to enable the Earth to control the Air, to enable defence from the ground to exercise control—indeed dominance—upon aeroplanes high above its surface. … science is always able to provide something. We were told that it was impossible to grapple with submarines, but methods were found … Many things were adopted in war which we were told were technically impossible, but patience, perseverance, and above all the spur of necessity under war conditions, made men’s brains act with greater vigour, and science responded to the demands.
[Remarks made in the House of Commons on 7 June 1935. His speculation was later proved correct with the subsequent development of radar during World War II, which was vital in the air defence of Britain.]
Quoting himself in The Second World War: The Gathering Storm (1948, 1986), Vol. 1, 134.
Science quotes on:  |  Airplane (32)  |  Defense (15)  |  Invention (283)  |  Radar (6)  |  War (144)


Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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