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Between 2000 and 2013, a network of sensors that monitors Earth around the clock listening for the infrasound signature of nuclear detonations detected 26 explosions on Earth ranging in energy from 1 to 600 kilotons.

Complete garden site covering plants, flowers, trees, vegetables, calendars, problems, garden types, tools, tips and lots more.

Facebook had subjected nearly 700,000 users in an experiment without their knowledge, manipulating these individuals' news feeds, reducing positive or negative content, and examining the emotions of these individuals' subsequent posts.

Top 10 Tai Chi Moves for Beginners for warmup, cool down, and daily Tai Chi Chuan practice.

Hundreds of apps put snoops to work and then there is "supersonic tone tracking". Of 300 apps Exodus has analysed, Yale says 75 per cent contain trackers.

Weird History Food is going to get sloppy with this one talking about the history of the Sloppy Joe.

An estimated 2.1 million deaths are caused by anthropogenic increases of fine particulate matter (PM2.5) while a further 470,000 are killed annually as a result of human-caused increases in ozone pollution.

The MapMachine (powered by ESRI) offers road, satellite, physical, street maps, and a selection of theme maps. You can also find an interactive climate change map.

A great performance by Andrea Faustini.

Using hidden cameras, this investigation into the fate of unwanted dairy calves (bobby calves) in Australia reveals what the dairy industry doesn't want you to see.