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My door was ajar, so...
“My door was ajar, so I added jelly, now it's a door jam.”
What is hidden in 3D image?
Brain Teasers
[1841] What is hidden in 3D image? - Stereogram - 3D Image - #brainteasers #stereogram #3Dimage
2016-01-17
Pendulum clock patentIn 1657, the first pendulum clock was patented by its inventor, Christiaan Huygens. Although others may have worked in this field before him, Huygens made major advances in building a practical clock. He needed time accuracy for his astronomical measurements. |