Tag: Alien

Energy
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.

The sun generates energy from a process called nuclear fusion. … About 30 percent of the radiant energy that reaches the Earth is reflected back into space. About half of the radiant energy is absorbed by land and oceans. The rest is absorbed by the atmosphere and clouds in the greenhouse effect.

We divide our energy use among four economic sectors: residential, commercial, transportation, and industrial. Heating and cooling our homes, lighting office buildings, driving cars and moving freight, and manufacturing the products we rely on in our daily lives are all functions that require energy.

Earth overshoot day
Earth Overshoot Day is the calculated illustrative calendar date on which humanity’s resource consumption for the year exceeds Earth’s capacity to regenerate those resources that year. The term “overshoot” represents the level by which human population overshoots the sustainable amount of resources on Earth.

Dyson sphere
A Dyson sphere is a hypothetical megastructure that completely encompasses a star and captures a large percentage of its power output.
The idea of a technological civilization re-engineering its planetary system in pursuit of energy goes back to science fiction stories of the 1930’s. But the term ‘Dyson sphere’ is what sticks with us, and it has its origins in a paper written by Freeman Dyson in 1960.

How to make a dyson sphere
such megastructures are theoretically possible, building a stable Dyson sphere system is currently beyond humanity’s engineering capacity. The number of craft required to obtain, transmit, and maintain a complete Dyson sphere exceeds present-day industrial capabilities.

Tabby’s Star
Tabby’s Star is an F-type main-sequence star in the constellation Cygnus approximately 1,470 light-years from Earth. Unusual light fluctuations of the star, including up to a 22% dimming in brightness, were discovered by citizen scientists as part of the Planet Hunters project.

Type of civilization kardashev
A Type I civilization, also called a planetary civilization—can use and store all of the energy available on its planet.
A Type II civilization, also called a stellar civilization—can use and control energy at the scale of its planetary system.
A Type III civilization, also called a galactic civilization—can control energy at the scale of its entire host galaxy.

मनुष्यों की एलियन टेक्नोलॉजी | Alien Technology on Earth

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