As heat is taken away from a fluid, its particles. slow down and come closer together. ï®. This causes the fluid to contract â its volume. decreases. ï®. This causes the density to increase. (D=M/V if V gets smaller, M/V gets bigger) ï®. Viscosity will also be affected, as particles slow. down and come closer together, it gets harder. for them to move past each other. Therefore, viscosity increases.
The commercial kind are probably $250 on up. You can get a nice Shure brothers mike for around $120. Their SM-58 is good for recording and amplifying voices, and the SM-57 excels at recording or amping musical instruments. Sennheiser is a long-time company that also makes several lines of mikes (or mics, if you prefer) that range from home-use to phenomenal studio use.
If you wish to use your computer to record your speaking responses, you will need a computer microphone. The instructions that follow explain how to set up a computer microphone. Your computer should have a connection to plug in a microphone (either a traditional microphone jack or a USB port).Some computers (especially laptop computers) have built-in microphones.A computer microphone can be purchased at many stores.indows Computers: Setting Up Your Microphone. We recommend that you check the microphone settings on your computer. 1. Click on the Start button, and then click to display the Volume Control box. 2. Otherwise, use your right mouse button to click on the Volume icon on your taskbar.