An energy-efficient lamp rated at 10 watts uses 10 joules of energy every second (because 1 watt means using one joule per second), so it would take it 37,800 secondsâabout 10.5 hoursâto use as much energy as our kettle uses in a single boil!
raâ¢diâ¢us. 1. a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter. 2. the length of such a line. 3. any radial or radiating part.. A line segment that joins the center of a circle or sphere with any point on the circumference of the circle or the surface of the sphere. It is half the length of the diameter. 2.
digitus. 1  Romanian: deget. 2  Romansch: det. 3  Sardinian: didu. 4  Sicilian: jiritu, jiditu, jitu. 5  Spanish: dedo, dÃ­gito (borrowing) 6  Venetian: dÃ©o. 7  Walloon: doet.