velcro	rzep/ material that consists of two pieces of cloth that stick together
grooving	żłobienie/ a kerf
traction	przyczepność/ the ability to hold the ground without sliding
skid	poślizg/ a movement that cannot be controlled:
radial	promieniowy/ spreading out from a central point:
tread	bieżnik/ the pattern on a tyre
to alter	zmieniać, modyfikować/ to change something
propellant	materiał napędowy, paliwo/ a substance that causes something to move
insulation	the amount of energy from the sun that reaches the earth
casing	obudowa/ a covering that protects something
hose	wąż/ a long plastic or rubber pipe
inductor	cewka indukcyjna/ also called a coil or reactor
silicon	krzem/ metal which is used in making computers and other electronic machines