Since we celebrated the landing of the Mars Rover Perseverance, we wanted to share the news of the preparations for Ingenuity’s flight. Ingenuity had been planning on beginning its month of flying on Sunday April 11, but has pushed it back until Wednesday. We look forward to hearing more from the little helicopter testing its wings on Mars, proving that we can fly on other planets.
In other news, satellite imagery has shown the kelp forests of northern California are dying off. Purple sea urchins are to blame, as their numbers increase. They have been eating up the kelp forests while their main predator the sunflower sea star has been dying off due to some mysterious illness. Sea otters could be the key, but they prefer the sea urchins in vibrant kelp forests. Divers have been trying to help, but its a big job.
In psychology and math news, it has been discovered people tend to add by default when they could either add or subtract. This means whether our bridge has two different supports or we are changing a recipe, we tend to add instead of subtract when either option is valid. We could have taken away from one support to even them out, but our brain wants to add first. We could take some ingredients away to make the recipe different, but instead we add more. This may explain why we end up so cluttered.
Finally, we had some students wondering about why honeycombs are hexagons. This article takes students through their own scientific investigation to discover the answer. It’s got projects to visualize how much effort it takes to make wax and consideration of how best to share cell walls.