The Pull-Up Method For Extending Missile Range

The Korea Herald reported on Apr 28, 2021 that the South Korean Defense Minister had commented on a recent test flight of North Korean missiles. He was reported to have said that the missile flew 600 km by the “pull-up” method. That was a revision of an earlier statement that the missile flew 450km. So …

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Lots Of Butterflies

I saw a lot of butterflies, but it will take me a while to set the scene. A few years ago I spent a year travelling through Central and South America. On this particular day I took a ride in a big dugout canoe up a broad river. It was a bright, sunny day as …

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