Well,There is plenty of crumpled spaghetti on the Ground, and graph paper is becoming scarce. That means it must be time for the Great Spaghetti Tower Challenge. Several groups in 801 have gotten off to a great start building, and everyone should have a structure created by tomorrow. Even though spaghetti and marshmallows might not seem very strong, it can easily be compared to real buildings.
In an earthquake, seismic waves travel through the ground, causing it to shift and twist (p and s waves!). Rigid brick structures and old buildings are no match for a strong earthquake. In Japan, homes are built light and flexible, so if they fall, they can easily be rebuilt and not as many people will be injured. In San Francisco, there is a huge movement to redesign and strengthen historic buildings with flexible steel and strong foundations. Each day, thousands of earthquakes happen, most are too small to feel, but they are there. The picture on the right is from a 9.2 earthquake that happened in Alaska in the 1960's.
Behold the Power of Plate Tectonics!!!!! Hot inside produces convection, convection moves the mantle, the mantle drags and pushes the plates as it shifts, this movement produces quakes and volcanoes. Wonderful! Our world is changing every day...
Posts
