A paper-thin high-quality loudspeaker
An ultra-thin speaker like a sheet of paper can deliver high-quality sound no matter what surface the film is stuck to. Its operating principle is to activate a piezoelectric film between two layers of PET. A power of 100mW is enough to power it and it can cover walls or even reduce noise in a noisy environment.
New light-based 3D printing method about 30 times faster
A new light-based 3D printing method is about 30 times faster than conventional additive manufacturing. The principle is to project light at different angles to cause the resin to solidify wherever the accumulated energy exceeds a given level, even in complex hollow sections without the need for support structures.
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(76aH*) : August 6th is the anniversary of the atomic bomb explosion on Hiroshima in 1945.
This date represents the entrance of Humanity into the age of Revelation (Apocalypsis).
Thus, since August 6, 2021, we are in 76 aH, (meanning 76 after Hiroshima).
It is also an “atheist” and universal calendar to replace the existing “monotheist”, religious and non universal calendars.
Articles on paper-thin loudspeaker, new light-based 3D printing method