Category: Science

My brother, a longtime math enthusiast (I’ve even seen him calculate logarithms in his head) has created an interesting math calendar for 2015 and is selling it on Amazon.

Scientists use spectroscopes to identify chemicals – even in stars billions of light years away. They also use spectroscopes to find planets orbiting other stars. With about an hour of effort, I was able to build my own and show my daughter how scientists do it.