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Optical illusion test: Blue, purple or red-- what's the colour of this dot and the science behind it
Sometime back, Hinnerk Schulz‑Hildebrandt, a biomedical optics engineer at Harvard Medical School, stumbled on something odd while checking a flight map on his phone. As his eye followed the flight ...
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Add Yahoo as a preferred source to see more of our stories on Google. Last August Hinnerk Schulz-Hildebrandt noticed something strange while he was looking at a flight map on his phone. As his eye ...
Last August Hinnerk Schulz-Hildebrandt noticed something strange while he was looking at a flight map on his phone. As his eye traced the plane’s flight path, he noticed that the line looked purple, ...
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