Understanding how droplets impact surfaces is important for a huge range of different applications. These range from spray painting, inkjet printing, fertiliser application and rainfall to crime-scene blood-splatter analysis and hygiene situations (men’s urinals being a familiar example). High speed movies show that when droplets hit surfaces fast enough, they often splash, emitting a corona of new, tiny droplets on impact.
The Impact of Collagen Fibril Polarity on Second Harmonic Generation Microscopy.
Couture, C
Bancelin, S
Van der Kolk, J
Popov, K
Rivard, M
Légaré, K
Martel, G
Richard, H
Brown, C
Laverty, S
Ramunno, L
Légaré, F
Biophysical journal
volume 109
issue 12
2501-2510
(Dec 2015)
Everyone knows that Moore’s law says that computers get cheaper at an exponential rate. What is not as well known is that many other technologies that have nothing to do with computers obey a similar law. Costs for DNA sequencing, some forms of renewable energy, chemical processes and consumer goods have also dropped at an exponential rate, even if the rates vary and are typically slower than for computers.