Science, Mathematics and Technology
- Periodontal ligament
- Power door locks
- Propositional dynamic logic
- Pulsed dye laser
- The poundal unit of force (abbreviated pdl)
- Polarization Dependent Loss, see Polarization mode dispersion
Read more about this topic: PDL
Famous quotes containing the words mathematics and/or technology:
“Why does man freeze to death trying to reach the North Pole? Why does man drive himself to suffer the steam and heat of the Amazon? Why does he stagger his mind with the mathematics of the sky? Once the question mark has arisen in the human brain the answer must be found, if it takes a hundred years. A thousand years.”
—Walter Reisch (19031963)
“If we had a reliable way to label our toys good and bad, it would be easy to regulate technology wisely. But we can rarely see far enough ahead to know which road leads to damnation. Whoever concerns himself with big technology, either to push it forward or to stop it, is gambling in human lives.”
—Freeman Dyson (b. 1923)
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