It’s Isaac Newton’s birthday. At least, it’s the anniversary of his birth – January 4, 1643, according the the Gregorian calendar.
If you’re a purist, you might have already marked the anniversary of his birth, on December 25th. As according to the Julian calendar, in use in England, at the time of his birth, the scientific great was born on Christmas Day, 1642.
In addition to laying out the Laws of Motion, he also did innovative work on the properties of light, as can be seen in this Lego re-enactment. And of course the logo for Apple, Inc. would only have half the symbolism it does if it weren’t for him.
You can check out a “free feature”, animated, video clip (meaning you can view it without a subscription) about his life, at BrainPop.com, today.