Mauna Kea Geminids This is a movie of last night’s sky from Mauna Kea and is well worth downloading. If you’re wondering “Why is the sky blue but I can see the stars?” that’s because for the first half of the night, the moon was up! At around midnight, it sets, creating a second dramatic […]
I was looking at Poliahu’s white cloak covering the peak of Mauna Kea, and then I put my face in the water and looked down at the coral reef 40′ below me and what should I see swimming below me but a manta ray with a 12’+ wingspan?
Imagine that you have a hierarchical object graph: hierarchy And you want to merge two instances. Some elements should combine elements from both, some must take their value from the master. My example scenario is artificial, so please don’t say ‘well, if all you have to do is number pages…’ This is my first take: […]