They make you learn stuff you don’t need and never use. About all I needed from high school was the 2 years of typing, I took. I do use some trig too. Most of the other stuff could have been two week crash courses.
Actually developed in 1944. The microphone transducer converts sound pressure from a user’s voice into an electric current, which is converted to sound by a transducer at the receiver nodes. The most significant distinction between ordinary telephones and sound-powered telephones is in the operation of the microphone. Since the microphones used in most telephones are designed to modulate a supplied electric current they cannot be used in sound-powered transducers. Most sound-powered telephones use a dynamic microphone. A common approach to transducer design is the balanced armature design because of its efficiency. The number of simultaneous listeners is limited because there is no amplification of the signal.
A sound-powered telephone circuit can be as simple as two handsets connected together with a pair of wires, which is defined as the “talk” portion of the circuit. Talk circuits can be realized over a pair of wires that are 50 km (30 miles) long. More complex circuits include magnetos, selector switches and bells to allow one user to select and call another, which is defined as the “calling” portion of the circuit. The voice communication (“talk”) circuit is completely separate from the “call” circuit, allowing communication to take place without external power.
MYOB! Mind Your Own Business. I often read of victims or victims’ families suing someone that tried to help the victim. My mother took the bus to work and the bus driver told her of the time he found a body on his route and the cops told him to get a lawyer!! MYOB!
I keep writing on how it will be 4 more years of Trump because progressives will hate ANY Democratic candidate for some reason or the other. People don’t believe me. Oh well.
I thought they spelled antivenom wrong, but antivenin is correct. I learned a new word.
I am always shocked when I find something right off the bat!!
I’m sure it was Hillary, has to be.
Hey he did so well finding NOTHING!! Spent over $20,000,000 too. But IIOKIYAR!
False labeling, the sign should say SUGAR!!
I hate that question. How the heck do I know how long it will take if I’ve never done it before! That is like those insane drug ads on TV. Don’t take blah blah blah if you are allergic to blah blah blah!! How the heck do I know if I am allergic or not???!!!