A ‘Ring of Fire’ solar eclipse is a rare phenomenon that occurs when the moon’s orbit is at its apogee: the part of its orbit farthest away from the Earth. Because the moon is so far away, it seems smaller than normal to the human eye. The result is that the moon doesn’t entirely block out our view of the sun, but leaves an “annulus,” or ring of sunlight glowing around it. Hence the term “annular” eclipse rather than a “total” eclipse.
Robot Self-Assembles And Walks
by Michael Keller
Roboticists have developed a flat machine that can fold itself into an operational form and take a walk.
Built mostly from paper and polystyrene plastic that shrinks into a memorized shape when heated, the robot can assemble in around four minutes. It can crawl at roughly 2 inches per second and make turns. The work by Harvard and MIT engineers represents the first time that a robot has self-assembled and performed a function without humans needing to intervene.
“Here we created a full electromechanical system that was embedded into one flat sheet,” said Harvard Microrobotics Lab researcher and doctoral student Sam Felton. “Imagine a ream of dozens of robotic satellites sandwiched together so that they could be sent up to space and then assemble themselves remotely once they get there–they could take images, collect data and more.”
Yellow-eyed penguin (Megadyptes antipodes)
The yellow-eyed penguin or hoiho is a penguin native to New Zealand. The species breeds around the South Island of New Zealand, as well as Stewart, Auckland, and Campbell Islands. This is a mid-sized penguin, measuring 62–79 cm (24–31 in) long (fourth largest penguin). Around 90% of the yellow-eyed penguin’s diet is made up of fish, chiefly demersal species that live near the seafloor. This species of penguin is endangered, with an estimated population of 4000. It is considered one of the world’s rarest penguin species. The main threats include habitat degradation and introduced predators. It may be the most ancient of all living penguins. photo credits: glogster, The Yellow-eyed Penguin Trust
“Il n’est pas certain que tout soit incertain.
(Translation: It is not certain that everything is uncertain.)”
― Blaise Pascal
Pascal’s triangle is basically my favorite thing. See what happens if you color in the prime numbers, or color different based on the numbers mod 3 or 4. So much to do!
John Rhys-Davies, the actor who plays the dwarf Gimli in the Lord of the Rings movies, is actually 6’1” and taller than the rest of the actors who play members of The Fellowship of the Ring.