How to solve the puzzle:
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Start the time.
Run start two more times until all hourglasses are empty.
Flip the 12 second and 4 second hourglasses and press start.
Flip the 7 second and 4 second hourglasses and press start.
Flip the 7 second and 4 second hourglasses and press start.
The puzzle will be solved. :)
Solved puzzle:
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After getting all the hourglasses to stop at the same time, the word GRAINS appears. Two letters in each glass.
using the clue from the video, an hour glass with @ symbols, writing a e-mail to grains@vanishingpointgame.com
auto-replies the answer: candelabra