TechXGeek founder used basic office supplies and construction materials to produce protective visor. The first batch of 400 visors were made under 8 hrs. All visors were donated to the front line heroes fighting COVID-19.
Aerial Screw by Da Vinci
31 years after the T.O of the first human powered (emission free) helicopter, TechXGeek will release to public the first snapshot of our E-VTOL propulsion system.
Quote from Wikipedia "
Da Vinci III
On 10 December 1989, the California Polytechnic State University Da Vinci III flew for 7.1 seconds and reached a height of 20 cm. The Da Vinci III is considered the first recorded human-powered helicopter flight."