Today could be the busiest day of the year for flights across UK air space.

[#1]

Fascinating video of a typical day courtesy of NATS.
https://player.vimeo.com/video/110348926

[#2]

Interesting video, surprised it also includes details of military training flights.

[#3]

Have a look at Flight Radar 24 web site, if you want to watch planes....    http://www.flightradar24.com
and you will be amazed at the number of ships there are at sea....  http://www.ship-tracking.co.uk/Miscellaneous/aismt.html ; de-magnify the page and also grab & drag for moving the map around
http://www.ship-tracking.co.uk/

[#4]

A couple of fascinating sites.
Thanks for that shutter.