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Jolena: Thank you for including the image with your question. The insect is a solitary wasp called a mason wasp, family Vespidae, subfamily Eumeninae, and probably Ancistrocerus for the genus
You have to multiply the force you use by the ratio of the diameters squared, because the force should be proportional to the cross sectional area. You can just use weights, if you know them. But to
Deborah: Thanks for including the image with your question. This is *not* a house centipede, but a "stone centipede." Here's more: http://bugguide.net/node/view/13169 They can sometimes blunder
This is not a new idea. Several years ago it was common to have a pushbutton coded system where the car owner punched in a secret number by pressing the illuminated buttons on the drivers side door.
No, I do not think the card swiper idea has merit. Why? ONE: Because there are too many hacker tools that can open the door. The hotel industry has become concerned because hotel rooms are being