They don't.
Yes , I find my self exhausted after being on it all day
Your muscles need a lot of energy to work, since every movement you make is using a lot of your muscles, and since ATP is energy, you need a lot of energy to go to your muscle cells because you use them all the time - even like typing at the computer, or just sitting up straight at your computer chair.
Leaving any electrical device on consumes power. You get charged for what you use. With no power consumed, no charge.
More frequence = more energy.
A skier at the top has more potential energy
we can interrupt with human teacher whereas it is not possible with a computer teacher
Some of the professions that are declining are woodworkers, photography specialists, credit and file clerks, computer operators, book binders and radio announcers/operators. Pumping station operators and tool cutters are two more.
Well, this can help teachers to explain more some difficult lessons.... it can also help teachers calculate grades.
a computer
Nowadays, most computers you can get in the UK are energy efficient. Many manufacturers will state this on the outside of the computer. A known energy efficiency classification company is Energy Star.
A toaster consumes more energy per second than a computer might, but toasters are used only occasionally; a computer could be left on for weeks or months at a time, meaning it uses more energy than a toaster.
they do more exersise
Letting teachers know how Twitter can benefit them in the class room is a good way to get more teachers on Twitter.
Yes. A personal computer uses only a small fraction of the amount of electricity that an elevator uses.
Yes , I find my self exhausted after being on it all day
Probably because they're more disciplined, have more respect for their teachers, pay attention in class and don't spend half their lives staring at a computer or mobile phone !
A computer uses more energy than a 60 watt lightbulb