If youâre still confused, hereâs what you need to know: 1  Outlook.com is the current name for Microsoftâs email service, which was formerly known as Hotmail. 2  Outlook Mail is the web app that letâs you browse your Outlook.com email account. 3  Outlook, or Office Outlook, is Microsoftâs desktop email client.
The Large Hadron Collider (LHC) is the world's largest and most powerful particle collider, the largest, most complex experimental facility ever built, and the largest single machine in the world.
The LHC is the world's largest and highest-energy particle accelerator. The collider is contained in a circular tunnel, with a circumference of 27 kilometres (17 mi), at a depth ranging from 50 to 175 metres (164 to 574 ft) underground.