| The Public Paperfolding History Project
Last updated 21/11/2023 x |
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| One Way Trays | |||||||
| This
page attempts to record what is known about the origin
and history of One Way Trays - design that if dropped
from a sufficient height will always land only one way
up. Please contact me if you know any of this information
is incorrect or if you have any other information that
should be added. Thank you. ********** As far as I know this idea first appears, although it is not fully developed, in 'The Magic of Science' by A Frederick Collins, which was published by thge Fleming H Revell Company in London and New York in 1917.
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