The Indian Institute of Astrophysics chose Hanle, Ladakh, for its observatory due to its clear skies, low light pollution, and minimal atmospheric turbulence. The high altitude also offers excellent visibility and stable weather conditions for astronomical observations.
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Increasing light pollution disrupts human sleep, wildlife behavior, and ecosystems. To control it, I would use outdoor lights only when necessary, install motion sensors, and choose LED lights with proper shielding to minimize skyglow and light spill.
Tape and rod measure length like a scale but are more flexible and suited for different contexts. “Char angula” refers to an old measurement unit, meaning “four fingers” or roughly 7-10 cm, used in traditional contexts.
The meter is convenient for measuring lengths like a railway track, but not for smaller measurements such as the thickness of a book page. For small lengths, units like millimeters are more precise.
If the ends of the scale are broken, measure from a known reference point to a point along the scale. Use a piece of string or another ruler to measure the length accurately from these points.
If everyone uses the same meter scale and reads it correctly, the results should be consistent. Differences arise from using various scales or incorrect readings, but a standard meter scale ensures uniform measurements.
When reading a scale, position your eye perpendicular to the scale’s markings to avoid parallax error. This ensures accurate measurement by aligning your line of sight directly with the scale’s markings.
Flexible measuring devices, like tape measures, can easily conform to various shapes and surfaces. This adaptability allows for accurate measurements of irregular or curved objects, which rigid devices cannot measure effectively.
Without windows, you can’t directly observe the ship’s movement. However, if you drop an object and it falls straight down, the ship is moving. In a stationary ship, the object would appear to drift.
To express the distance between your school and home in meters, convert the distance from kilometers to meters, multiply by 1000. The distance between your school and home is 1.5 kilometers, which equals 1500 meters (1.5 km × 1000 = ...