Black holes
What is a black hole
- A region of space having a gravitational field so intense that no matter or radiation can escape
- A place where money or lost items apparently disappear without trace.
Why do we have black hole
A black hole is a region of space time exhibiting such strong gravitational effects that nothing—not
even particles and electromagnetic radiation such as light—can escape from inside it. The theory of
general relativity predicts that a sufficiently compact mass cande form space time to form a black hole
even particles and electromagnetic radiation such as light—can escape from inside it. The theory of
general relativity predicts that a sufficiently compact mass cande form space time to form a black hole
Telescopes
What are Telescopes
Telescopes are optical instruments that make distant objects appear magnified by using an arrangement
of lenses or curved mirrors and lenses, or various devices used to observe distant objects by their emission,
absorption, or reflection of electromagnetic radiation
of lenses or curved mirrors and lenses, or various devices used to observe distant objects by their emission,
absorption, or reflection of electromagnetic radiation
Microscopes
What are microscopes
A microscope is an instrument used to see objects that are too small to be seen by the naked eye.
Microscopy is the science of investigating small objects and structures using such an instrument.
Microscopic means invisible to the eye unless aided by a microscope
Microscopy is the science of investigating small objects and structures using such an instrument.
Microscopic means invisible to the eye unless aided by a microscope
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