Inventions for a 9 year old

How to build a machine that can create anything

La teoría de la evolución

A Barnes and Books is interested in purchasing a two-story building for a new retail store. They plan to use the first floor as the display/sales area and the second floor for storage of inventory.

There are 20 forging presses in the forge shop of a small company. The shop produces batches of forgings requiring a setup time of 3.0 hours for each production batch.

Which of the following is an easy way to remember the modified "X" tire rotation? A. Nondrive wheels straight, cross the drive wheels B. Drive wheels straight, cross the nondrive wheels C. Drive wheels crossed, nondrive wheels straight D.

Consider the following grooves, each of width W, that have been machined from a solid block of material. (a) For each case obtain an expression for the view factor of the groove with respect to the surroundings outside the groove.

What is the last step to the design process? A: Define the problem B: Present solution C: Evaluate a solution D: Develop a solution

The controller can be considered the brain of closed loop system

What is the main role of matrix in composites! a) - to transfer stress to the other phases b) - to protect phases from environment c) - to reduce the hardness d) - to enhance ductility

Our goal is to design a traffic-light controller with the following properties; it lights up the green light (output G) for 15 seconds, followed by the yellow light (output Y) for 9 seconds, then the red light (output R) for 12 seconds.