Getting the most out of A/B and other controlled tests by Ron Kohavi and Stefan Thomke In 2012 a Microsoft employee working on Bing had an idea about changing the way the search engine displayed ad ...

Weighing 23 000 tonnes and standing at nearly 30 metres tall, ITER will be an impressive sight to behold. This nuclear fusion reactor will sit at the heart of a 180-hectare site, together with ...

Respiration by living organisms can be investigated by carrying out experiments to show the production of carbon dioxide and heat. Limewater can be used to detect carbon dioxide. Breathing in through ...

What should I look out for? • Easy to follow films demonstrating how to do simple experiments using basic equipment – from bicarbonate of soda and vinegar to balloons and CDs. • Famous families having ...