![]() ![]() *Citation: "G-band and Hard X-ray Emissions of the 2006 December 14 Flare Observed by Hinode/SOT and RHESSI," by Kyoko Watanabe, Säm Krucker, Hugh Hudson, Toshifumi Shimizu, Satoshi Masuda, Kiyoshi Ichimoto. It's possible that as the sun eases into a more active state over the next year, scientists will have more opportunities to study the flares.Ī paper on the new work, with Kyoko Watanabe of Japan Aerospace Exploration Agency as lead author, appeared May 20 in The Astrophysical Journal. Of course its a lot more complicated than that, with. "It's being done by electromagnetic effects that are not really understood," Hudson admitted. A mirror reflects all colors (white light), so you see an exact reflection of the light it reflects. "As opposed to the LHC where you accelerate a few particles, it would be like accelerating the whole building basically," said Hugh Hudson, also of Berkeley's Space Science Laboratories, who worked with Krucker.Īstronomers haven't figured out how exactly the sun works as a particle accelerator just yet. It's not unlike what humans do at a much, much smaller scale in particle accelerators like the Large Hadron Collider. Hence, the sun looks reddish to us during sunrise and sunset and the full moon has a reddish appearance near the horizon.Now, it looks as if the extremely powerful electromagnetic fields somehow deliver enormous amounts of energy into particles in the sun's photosphere. Most of the blue and colours of other such wavelengths get scattered thus leading to the least scattered light i.e. It’s also worth noting that the light has also been seen shooting up from arch, one of the. The Reddish Appearance of the Sun and Full Moon near the Horizonĭuring the times of sunrise or sunset, the light rays have to travel more in the atmospheric air. Since all the wavelengths suffer different angles of deviation, when white light passes from one optical medium to another, different colours of the light split, and this phenomenon of splitting of light into its components as result refraction is called dispersion. Blogs claim the phenomenon happens in the morning hours between 8:30 a.m. Hence the clouds having a > λ are generally white. For a > λ, it is not true that all wavelengths are nearly scattered equally. λ is the relative size of the wavelength and the scatterer is of size a. There are various large particles present in the atmosphere like water and dust. Now, violet has a much shorter wavelength than blue and so it scatters the most but why are we not able to see it? Because our eyes are more sensitive to blue colour than violet and hence the sky appears blue to us. It is due to this reason that blue colour dominates the sky above as it has a shorter wavelength, it scatters more. The light having shorter wavelengths is scattered much more than the light having longer wavelengths. When sunlight enters the earth’s atmosphere and travels, it gets scattered by the particles present in the atmosphere. Refraction at Spherical Surfaces and By Lenses All the remaining colours exist between these two. The red light comes out at an angle of 42 degrees to the sunlight while the violet light comes out at an angle of 40 degrees. As this light moves forward to come out of the droplet, it undergoes refraction again. ![]() These rays of light then strike the inner surface of that water droplet leading to reflection if the angle between the refracted ray and normal to the drop surface is greater than the critical angle i.e. The colour having a shorter wavelength of light i.e. The colour having a longer wavelength of light i.e. In the opposite part of the sky to the sun, it should be rainingĪs the light from the sun enters a water droplet present in the atmosphere, it is refracted. The white light then splits into 7 component colours of the rainbow of different wavelengths.The sun should be shining in a part of the sky.For a rainbow to be visible, there are two conditions that should be met. When the water droplets in the atmosphere disperse in the presence of sunlight, the rainbow is visible to us. of white light (the white light includes all the components of colors). It can be seen when a person has his/her back towards the sun. Using simple words reflection is the phenomenon when light is returned after. The rainbow with its spectacular 7 colours spread across the sky, is an amazing and most beautiful optical phenomenon. ![]()
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