Early European Human Had A Neanderthal Ancestor

Early European Human Had A Neanderthal Ancestor

Neanderhals became extinct about 40,000 years ago but contributed on average one to three percent to the genomes of present-day Eurasians. Researchers have now analyzed DNA from a 37,000 to 42,000-…
Lego Optics Lab: Small Lens Holder

Lego Optics Lab: Small Lens Holder

In my previous article, I started building a Lego optics lab with a dichroic prism I salvaged from an old computer projector that I took apart (I used the prism to build a beam splitter). I also…
EWG's Little Site Of Horrors

EWG's Little Site Of Horrors

And I thought *my* job was fun.  I regularly get to ridicule an incredible variety and quantity of nonsense that poses as science and medicine. Some of it borders on hilarious.  On the…