any four recent developments in science and technology which are useful to mankind
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Solar powered water purifier with 1 litre pure water from 2 liters of water. Better than RO based purifiers/ filters.
Inter Occular lens for cataract patients.
3d printers
Braille printers
Bioprinting
Ironman flying suits
Invisible cloaks
Personal pollution monitor
Inter Occular lens for cataract patients.
3d printers
Braille printers
Bioprinting
Ironman flying suits
Invisible cloaks
Personal pollution monitor
kvnmurty:
Click on the red heart thanks above
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