This Eggstractor works quite well. I don’t eat lots of hard boiled eggs but when I do I usually end up picking tiny pieces of shell off the egg for a minute or two. I think this idea is good enough for Dragons Den (one of my favorite shows)! “Very useful way to peel an boiled egg. With this homemade gadget you can peeling over 50 eggs per minutes
Have you ever wondered about all of the different batteries on the market these days? Urban legends about batteries?? Are you suppose to drain them completely before you charge them or charge them after every use? Would you like to build a smart battery charger to charge the your batteries just enough so you will not fry them? When would you use nickel-cadmium over nickel-metal-hydride? Why would you want to
