The Print on MSN

South Asians became lactose-tolerant by accident & asteroids may be gold mines of cosmic treasure

ScientiFix, our weekly feature, offers you a summary of the top global science stories of the week, with links to their ...
Amazon S3 on MSN

How I built a cord drill and pump drill for fire and woodworking

I built a cord drill and pump drill to make fire and work wood. Rotational motion enabled controlled friction and woodworking ...