Search Results

Any reflected light from an object would be less intense than the light generated along the light path, therefore it would be visible only as a slightly more brilliant area, when in close proximity of … Over long distances the reflected light would be too dim to be visible. (like it happens with any light source). …

The immense gravity of a compact boson star would bend light around the object, creating an empty region resembling the shadow of a black hole's event horizon. …

If the radius falls below 1.76 times the Schwarzschild radius for its mass, then due to the General Relativistic bending of light in curved space, then all of the surface is visible, when viewed from any … direction If the light can be bent to show all the surface from any direction, it should be also possible to trap it around the body. …

Something akin to snow blindness, or photokeratitis, can explain this Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ult …

Just shift the phase a bit, and the zeroing will not be perfect, leaving some light visible. …

Speed of light would affect the match in two ways: creating relativistic effects for fast enough objects I have no specific knowledge of badminton, but let's say a skilled player can hit the "ball" … In both cases that speed is peanuts when compared to the speed of light for both Sindu and Bindu. There would be no difference in the gameplay of the two. …

In a gaining medium $\alpha$ is negative, resulting in light being amplified as it travels through the medium. This is used in laser cavities and light amplifiers. … RF excited CO2 can act as amplifier for infrared light. So, if your guy is able to induce inversion population, he can achieve what you want. …

Light rays incident on any point on the inner surface are, by multiple scattering reflections, distributed equally to all other points. The effects of the original direction of light are minimized. … It is typically used with some light source and a detector for optical power measurement. …

Reason for this is that an optic fiber simply transport light with almost (mind this almost, it will become important in the following period you are going to read) no attenuation. … But if you want to transport X amount of light from A to B, you have to take it from A. Thus, the light you cast on 100 square meter on dark side will come from 100 square meters of the bright side. …

That not enough to shine any useful light, even holding it very close to the object you want to illuminate. …

They can use stars to tell the North, and then the horizon line, recognizable because it gives a sharp separation between starry sky and dark ground, to recognize landmarks which can act as reference …

The infrared spectrum or the visible spectrum, just to name two, are just convenient anthropocentric conventions, not a reality set in stone. If you asked a bee what is for them the visible spectrum, …

This can be translated to blue traffic light in English. …

beyond generic statement like "talcum is highly reflective" or non normalized spectra, like this one If we make an assumption that talc is from 2 to 3 times more effective than regolith at scattering light … , we get that the talc covered lunar surface would roughly reflect back a similar proportion of light. …

Consider that it will be way closer than Venus is to Earth, and stay assured that it will be enough of a light source at night. … It's called Earthshine and it's caused by the Moon reflecting back the sun light cast on it by the lit side of Earth. (image source) …