The closest galaxy which can be seen by the "naked eye" (blushing) is the Andromeda Galaxy which is 2,400,000 light years from earth. We can't see other galaxies because of the extreme distance between Earth and the galaxies.
Astronomers analyze the light reflected from comets with a machine, and can easily tell what major elements it is composed of.
Sonam kapoor is quite rich. Exact measure cannot be told but one can easily estimate that she is quite rich. Her father is also an actor and that makes the difference.
No, apatite cannot scratch topaz. On the Mohs scale of mineral hardness, apatite has a hardness of 5, while topaz has a hardness of 8. This means that topaz is significantly harder than apatite and can easily scratch it.
A coping saw is ideal for fitting into tight places where a larger handsaw cannot reach. Its thin, narrow blade and adjustable frame allow for intricate cuts and maneuverability in confined spaces. Additionally, the blade can be easily replaced, making it versatile for various cutting tasks. This makes it a preferred choice for detailed work, such as cutouts and curves in woodworking.
pretty easily because it's an active metal
Telescopic images taken in the infrared and x-ray parts of the spectrum have been a great help in this area, to name just two. As an example: The center of our Milky Way galaxy lies in the direction of the constellation Sagittarius, but we cannot see it in normal light because of gasses and dust between our part of the galaxy and the center. But with infrared photography, the center of the galaxy is seen easily as an egg yolk-shaped "glow".
The reason astronomers were able to photograph the surface of Mars is due to probes, unmanned spacecrafts used for exploration in space.
Double stars, also called binary stars, are valuable to astronomers because they are the only stars of which astronomers can easily calculate their mass. They are bound to each other by gravity and orbit about a common center. The time it takes for one star to orbit the other depends on the distance between the two stars and their masses.
Satellites and space probes provide astronomers with access to data from space that cannot be obtained from Earth, such as images in different wavelengths or information about distant objects. They also allow for exploration of distant celestial bodies and regions that are not easily accessible using ground-based telescopes. These tools help astronomers study the universe more comprehensively and advance our understanding of the cosmos.
Optical illusions demonstrate that our perception can be easily manipulated, leading us to see things that aren't there or misinterpret visual information. They highlight the gap between reality and our interpretation of it, showing that our brains can be tricked by contextual cues, colors, and shapes. This serves as a reminder that our senses, while generally reliable, can be deceived, teaching us to question our assumptions about what we perceive. Thus, optical illusions illustrate that seeing is not always believing.
The word for things that cannot be easily explained or understood is "mysterious" or "unfathomable".
Astronomers analyze the light reflected from comets with a machine, and can easily tell what major elements it is composed of.
sturdy
The instrument is an optical microscope.
Trick question; the center of the Milky Way galaxy cannot be observed at all. Not only are there vast clouds of interstellar gas blocking the light, but we believe that the center of the galaxy - as at the centers of MANY galaxies - is occupied by a supermassive black hole.
The wavelength 620nm is significant in optical measurements because it falls within the visible spectrum of light, specifically in the red-orange range. This wavelength is commonly used in various optical instruments and experiments due to its ability to be easily detected and measured accurately.
optical fibres work on the principle of total internal reflection.that is a long concept but easily available.because of this T.I.R the light transmitted through the wires is very small.so it can travel a longer distance(not necessarily rectilinear).so it finda application in medical surgery to get a view of the organs by inserting optical fibres through the wind pipe.it is also used to carry light to those materials that cannot be placed inside a spectroscope directly.they are also used for decoration purpose.the lamps with glowing hairs are good examples.