The pencil uses Thermal energy
dixon ticonderoga
The pencil is the same type of contribution as the waterslide.
They really don't use power tools but they do HAVE to use household items such as a pencil, a notepad, blue prints, and a ruler.
They use electrical power.
in the pencil uses lead
in the pencil uses lead
It is a new type of led the scientist use for pencils now in stead of toxic ones!
a no. 1 pencil lead
As many other devices it depends on the time of use... for example: a regular pencil sharpener as the Panasonic KP380 load is tagged 70W. If a pencil is about 7.5 inches length and each sharpen process takes about 1/2 inches, this means you will have to use it about 15 times in the lifetime of the pencil. Each time lasts about 4 to 5 seconds. For each pencil you need 75 sec (.02083 hrs) . Power usage is (70w)x(0.20833) = 1.45 Wh / pencil. or 0.00145 KWh/pencil
you use a pencil for writing because you can erase your maskates
The 4H is the lightest pencil.