Shampoo in your eyes – Botanical extracts added to shampoos almost never do anything at all and are usually there purely and simply to make the product look more natural. They are used at very low levels indeed. Expensive shampoo is a waste of money as is the cheap stuff you buy by the gallon. Supermarket own brands are fine, apparently.
Free scientific calculator – Red Crab is a free and portable calculator for Windows that is perfectly suitable for complex algebraic equations like fractions, square roots, exponents and a lot more. The best option to take a look at the calculator’s capabilities is to load a few of the demo projects that ship with the download.
First all-digital science textbook will be free – Within two and a half years, the E.O. Wilson Biodiversity Foundation hopes to complete a 59-chapter digital textbook about biology called Life on Earth. As each chapter is finished, the foundation plans to put it into the hands of anyone who wants it, for free.