What is hidden in 3D image?
[1940] What is hidden in 3D image? - Stereogram - 3D Image - #brainteasers #stereogram #3Dimage
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What is hidden in 3D image?

Stereogram - 3D Image
#brainteasers #stereogram #3Dimage
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Being sarcastic at the wrong time

My death will probably be caused by being sarcastic at the wrong time.
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Edison patents

In 1893, Thomas A. Edison was issued U.S. two patents. One was for the "Art of Generating Electricity" (No. 490,953) which described a cell made with positive and negative electrodes in a heated chamber containing dry chemicals which is exhausted to the point that gases generated in the reaction become good conductors of electricity. The other patent concerned the "Manufacture of Carbon Filaments for Electric Lamps" (No. 490,954). This described taking slips of fibrous vegetable material, such as bamboo, to be heated in a suitable furnace until partially carbonized, then soaked for several hours in sugar syrup to fill the pores with more carboniferous material before reheating until completely carbonized.
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