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...work area, and keep children and animals well away from your workspace and chemicals. Always work in a well-ventilated area (if possible, outside), and avoid working on your own. Procedure FIRST PUT ON YOUR PROTECTIVE GLOVES, APRON AND SPECTACLES It’s advisable to do this first step outside. Stirring continuously, gradually add the sodium hydroxide carefully to 200cm3...

...workings of the Difference Engine. According to her companions, Ada immediately understood the workings of the machine and its potential. Throughout the 1830s conversed regularly with Babbage and the two became close friends, although there is no evidence they were ever romantically entangled. Certainly, Babbage was entranced with his young protégé. In 1843 he wrote:...

...work, and you get a call from home: “You know that fault on the sequential shunt unit? Looks like this Friday would be a good time to get it sorted. It’ll be easy to fix – just one bolt needs to be undone.” If you are handy about the house, undoing a bolt to change a bit of kit is easy and may just take five minutes. Unless the bolt is buried deep within the car...

...worked with machines using XP. This is made far more concerning by the official end of Microsoft support for Windows XP in April 2014. While funding to ease the changeover through extended support and eventual move to a more modern operating system was made available, there are still many NHS computers running Windows XP. This is putting the safety and privacy of patients...

...work together on real-life planetary defence - far beyond Hollywood’s sci-fi blockbusters. Discover how you’ll have a chance to witness a real-life asteroid fly-by in 2029 when Apophis comes so close to Earth that it will be visible to the naked eye across parts of Europe, Africa and Asia. Defending Earth from asteroids [Laptop with Defending Earth from asteroids...