Effusion is the movement of gas molecules through a small opening into an area of lower pressure.Thomas Graham, a Scottish chemist studied effusion and diffusion of gases and found that lighter gases move faster than denser gases. Based on his...

In chemistry, effusion is the process where individual molecules flow through a hole without collisions between molecules. This will occur if the diameter of the hole is considerably smaller than the mean free path of the molecules[1]. According to...

The welcome for Fred Thompson wasn't just warm, it was effusive.The former Tennessee senator and actor is still weighing whether to run for the GOP presidential nomination but House Republicans who met with him Wednesday gushed over the prospects of Thompson candidacy.They called him presidential,...

Women of New York emit a mighty mass moan as George Clooney arrives at the Ziegfeld for the premiere of Michael Clayton, his new film about a corporate law firm in New York. (And pssst: It’s good!) Also present: his never-aging co-star Tilda Swinton, who’s...

He'd disappointed the previous day by failing to show for a panel discussion on narrative journalism, of which he is an unquestionable master. But publicity-shy Gabriel Garcia Marquez, who turned 80 this month, did finally appear Monday at the semi-annual meeting of the Inter American...

A Guantanamo Bay prisoner slashed his throat with a sharpened fingernail last month, spilling a lot of blood but surviving, a U.S. military commander said Tuesday.There have been four suicides since the U.S. opened the military prison at Guantanamo in January 2002 for men suspected...