Anyone interested in biotech stocks will know that it could be challenging to pick winners in this âhigh risk - high returnsâ industry which is constantly growing and changing. Companies which hit the bullâs eye become overnight success stories with shares even doubling or tripling on positive news.
Particles that are small compared with the light wavelength scatter blue light more strongly than red light. Because of this, the tiny gas molecules that make up our Earthâs atmosphere (mostly oxygen and nitrogen) scatter the blue portion of sunlight in all directions, creating an effect that we see as a blue sky. Within the visible range of light, red light waves are scattered the least by atmospheric gas molecules.
Interestingly, this is not the reason that the sky is blue. But, that is a physics problem for another day. Sue Pike of York has worked as a researcher and a teacher in biology, marine biology and environmental science for years. She teaches at York County Community College and St. Thomas Aquinas High School.