Pleistocene age clastic dikes in the Columbia Basin, WA grew incrementally by repeated injection of sediment into cracks. Injected sediments are called "fill bands" or "sheets". The model above is a simple representation of the more complex real-world system where cracks form by hydrofracture and sediment is injected into them under pressure. I believe cataclysmic Ice Age floods (Missoula floods) are the trigger for hydrofracturing. At least 40 major scabland floods flowed ou

Scooter-mounted Device to Carry Golf Clubs If a surfboard can be carried on a bicycle, why can't a full bag of golf clubs be carried on a scooter? Design Notes - Surfboards weigh around 6 lbs. - A full set of 14 clubs is around 30 lbs with the bag. - I carry only 10 clubs in a lightweight bag for total weight of 20 lbs. - A bag of clubs measures 43" x 10" x 11". - Weight must be supported over about 36" at minimum, so make prototype 36" x 10" in 3/4" plywood. - Flat, stiff pl