In case extra-terrestrials are trying to find a habitable planet and looking towards the earth, what we are supposed to do? Hide ourselves from predator eyes with the help of a cloaking device or announce our presence with the burst of light?
Scientists at Columbia University have just discovered how to do it in either way. Once you have the tool, you have the choice of deciding and doing it according to the need of the day.
Recently, hiding ourselves has become a major concern after ProfessorStephen Hawking, opined that any contact with technologically advanced civilisations would be as catastrophic and devastating for humanity now as the arrival of Europeans was for native societies around the world about half a millennium ago.
The recent discovery by Columbia University might be an encouraging development for entities Seti, the Search for Extra-Terrestrial Intelligence, which is .actively looking for the signs of aliens.
The Columbia astronomers presented apaperfor theRoyal Astronomical Societydescribing how a 30MW laser would be able to mask the visual signal from a planet. Incidentally, the same device can transmit a huge amounts of data between the cosmic bodies. That’s not all, a 250MW tuneable laser will be able to generate a “chromatic cloak” capable of hiding human civilization at every wavelength.
This brings back the interesting questions posed by Fermi Paradox, which was proposed by Italian physicist Enrico Fermi. He, during a conversation with colleagues, posed a vital question: “Where is everyone?”
This new finding gives an immediate answer to that question. They are hiding somewhere nearby right beneath our noses, cloaking themselves effectively and efficiently from us!
Prof David Kipping and his graduate student Alex Teachey tried to find out the difficulty level of hiding from everyone and to everybody’s surprise, the process turned out to be very simple and easy.
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