White light is made up of a mixture of different colors. Light travels in waves, and different colors have different wavelengths. Things seem a particular color because of the light they reflect or scatter[散射]—a leaf appears green because it reflects green light. Scattering Light Shine a to...
Describe waves and particles. Why do we specify that the foil be thin in experiments intended to check the Rutherford scattering formula? Explain why the light was thought to be a form of electromagnetic wave. Why is it so much easier to perform interference exper...
This seems like a very simple question. Waves are very distinct phenomena in our universe, as are particles. And we have different sets of mathematics to describe each of them. So, if we want to go about describing the entire universe, this appears to be a very handy classification scheme ...
Light is a type of electromagnetic radiation visible to the human eye. It is made out of little packets called photons. Photons behave like particles in some ways and like waves in other ways. If you shine a beam of light at a mirror, for example, it bounces off of it just like a b...
Here are some of the leading candidates for what dark matter might be: WIMPs (Weakly Interacting Massive Particles) These hypothetical particles are among the top contenders. They would have mass and interact via gravity and possibly the weak nuclear force, but not with light or electromagnetism,...
Waves, particles, and storms in geospace: a complex interplay, edited by G. Balasis, I. Daglis, and I. R. MannIn many ways, James A. Van Allen defined and "invented" modern space research. His example showed the way for government-university partners to pursue basic research that also...
The wave-like properties of light can be described in terms of its wavelength, frequency, and amplitude. The wavelength of light is the distance between two successive peaks or troughs in the wave, and the frequency is the number of waves that pass a given point per second. The amplitude ...
Light is only a product of our minds. Some "light waves" are invisible (dark) because our minds do not process them. Plants, eggs and sand are completely blind. They see no light whatsoever. Plants photosynthesize energy in the form electromagnetic waves that are completely dark apart from...
4 Because they are found on the part of the tire rubber that doesn’t hit the road, and they have no impact on how well your tire grips(抓牢) the pavement in rainy weather. These rubber hairs also don’t have any impact on road noise or why your tires squeak when you’re driving....
The solar wind, which is streams of particles(粒子)released from the sun, could be the origin of the water in the beads, according to the study. The glass beads have lots of holes inside to catch hydrogen from the wind...