Reinforce loose dirt with some stiff material and it can hold a car, form a freeway on-ramp, or be the wall of a building! Great engineering video.
Friday 20 May 2016
Friday 13 May 2016
Mercury’s Transit
Mercury passes directly across the sun for the first time in ten years. Look how tiny it is!
Triple Scorpions!
Three short videos on how scorpions evolved, scorpion moms, and glowing scorpions. I love the scorpion expert lady!
Subscribe to:
Posts (Atom)