Scientists have uncovered an unexpected breakdown of nuclear order in a remarkably symmetric atom, challenging long-standing ...

Like all noble gases, xenon is colourless, odourless and inflammable — but it is also more reactive, and much rarer, than its lighter relatives. Ivan Dmochowski ponders how xenon, though initially ...

Many features in this guide work in other shells too. History expansion comes from csh. Keyboard shortcuts come from the readline library. Parameter expansion follows POSIX standards. Some features ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...

State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China National Engineering Research Center of Chemical Fertilizer Catalyst, ...

Minimal globals or global configuration. Only a default instance of $, but it's not mandatory to use this. No custom CLI. Good for application code in addition to use as a shell script replacement.