Heat from the Sun vaporizes ice on a comet's surface, causing a cloud of gases, water and dust called a coma to form around its nucleus.
Comet Lovejoy, though, has surpassed earlier brightness forecasts and was reportedly better than the seventh magnitude last week, appearing through binoculars as a diffuse blob up to half the diameter of the Moon, with a brighter core around its nucleus.
They mapped its physical surface features, sniffed the cloud of gas and dust around its nucleus, analyzed its interaction with the solar wind and used radio waves to probe its interior.
I can't think of another front-drive car that's so easy and fun to pivot around its axis.
Consider the lean methodology acolyte Groupon, which continues to pivot around its core innovation of "social shopping," whereby consumers leverage scale to negotiate discounts from merchants.
After the general engagement had been in progress for some time, Philip had his army perform a wheeling manoeuver, with the right wing withdrawing, and the whole line pivoting around its centre.
Anderson argues, at its nucleus, the War on Terror is nothing but a lattice of stories.
A quick rotation will make it spin in place, but a slower rotation will cause it to pivot around one of its fixed feet.
A comet's atmosphere surrounding its nucleus.
In the several different types of flintlocks that were produced, the flint was always held in a small vise, called a cock, which described an arc around its pivot to strike the steel (generally called the frizzen) a glancing blow.
Use the rotate tool to rotate the blade to the desired position around its pivot point.
