Monthly Archives: March 2022

This week I will describe and show how each of the inventions I learned this week impacted history.  The inventions I learned about are the Salt and Pepper Shakers, the Mason Jar, the Pencil Eraser, and the Twine Binder. The Salt and Pepper Shakers are little jars with holes in the top of the lids. Continue reading “Week 16 Inventions“

This week I am going to write about the Jackhammer, the Pin-tumbler Lock, the Safety Pin, and the Gyroscope. The Jackhammer is a drill bit that vibrates up and down to break the surface it is on.  It can either run on electricity or on compressed air.  The Jackhammer is very useful because concrete canContinue reading “Week 13 Inventions“