stackyFACTSYou have spent your entire adult life assuming the laser is scanning those thick black lines on your groceries, but you are entirely wrong. The scanner is actually reading the white gaps between them, measuring how the light bounces back. The black lines just exist to create boundaries. The empty space is actually doing all the work.
Keep exploring facts in this topic.
Science →STACKY FOR IPHONEKeep discovering with Stacky. Interesting facts in an app that is always within reach.
Thulium is the tragic outcast of the periodic table. It is incredibly difficult to isolate, absurdly expensive to purify, and possesses absolutely zero unique…
Discover more
Buying expensive silverware is just inviting a lifetime of tedious polishing. Silver actively reacts with trace amounts of sulfur floating around in the…
Discover more
It turns out the biological blueprint of life is basically asbestos. When exposed to extreme heat, DNA strands cross-link to form a fire-resistant protective…
Discover more
Robert Hooke pointed his lenses toward Jupiter and noticed a massive, bizarre blemish rotating aggressively across the atmosphere. He essentially cataloged a…
Discover more
The Earth is secretly slowing down. Due to the friction of the ocean tides pulled by the moon, what is happening to us?
Discover more
Mapping the surface of Mars and the Moon has been done in far greater detail than mapping the bottom of our own oceans on Earth. More than eighty percent of…
Discover more