#chemical

Rocket scientists agree that we have about reached the limit of our ability to travel in space using chemical rockets. To achieve anything near the speed of light we will need a new energy source and a new propellant. Nuclear fission is not an option. ↗

— Wilson Greatbatch

#about #achieve #agree #anything #chemical

Feelings are like chemicals, the more you analyze them the worse they smell. ↗

— Charles Kingsley

#chemicals #feelings #like #more #smell

Ants are so much like human beings as to be an embarrassment. They farm fungi, raise aphids as livestock, launch armies into war, use chemical sprays to alarm and confuse enemies, capture slaves, engage in child labour, exchange information ceaselessly. They do everything but watch television. ↗

— Lewis Thomas

#ants #armies #beings #capture #ceaselessly

Owing to the difficulty of dealing with substances of high molecular weight we are still a long way from having determined the chemical characteristics and the constitution of proteins, which are regarded as the principal con-stituents of living organisms. ↗

— Karl Landsteiner

#chemical #constitution #dealing #determined #difficulty

Computer photography won't be photography as we know it. I think photography will always be chemical. ↗

— Annie Leibovitz

#chemical #computer #i #i think #know

An aggressor nation or extremist group could gain control of critical switches and derail passenger trains, or trains loaded with lethal chemicals. ↗

— Leon Panetta

#chemicals #control #could #critical #derail

After all, the universe required ten billion years of evolution before life was even possible; the evolution of the stars and the evolving of new chemical elements in the nuclear furnaces of the stars were indispensable prerequisites for the generation of life. ↗

— John Polkinghorne

#before #billion #chemical #elements #even

The distinction between the old and the new formulations consisting in the incorporation of the concept of the rate of chemical reactions is so great that it immediately asserted itself in the objective development of catalysis. ↗

— Wilhelm Ostwald

#between #catalysis #chemical #chemical reactions #concept

This camera works like photosynthesis. It is as if you were Xeroxing your own face. The pictures have such physicality: their surface is like fine leather, stained from chemicals. Each one has a body and is more than an image. ↗

— Julian Schnabel

#camera #chemicals #each #face #fine

The results of decades of neurotransmitter-depletion studies point to one inescapable conclusion: low levels or serotonin, norepinephrine or dopamine do not cause depression. here is how the authors of the most complete meta-analysis of serotonin-depletion studies summarized the data: "Although previously the monoamine systems were considered to be responsible for the development of major depressive disorder (MDD), the available evidence to date does not support a direct causal relationship with MDD. There is no simple direct correlation of serotonin or norepinephrine levels in the brain and mood.' In other words, after a half-century of research, the chemical-imbalance hypothesis as promulgated by the drug companies that manufacture SSRIs and other antidepressants is not only with clear and consistent support, but has been disproved by experimental evidence. ↗

— Irving Kirsch

#depression #nonsense #dating