Science facts today

* The safety match was invented by Gustaf Erik Pasch (in the year 1844). It was later improved by Johan Edvard Lundström. * Cartography is the science of making maps. * Cobalt-60 is an artificial radioactive isotope of cobalt used for sterilizing surgical instruments. * Photoelectric effect was discovered by Heinrich Hertz and Wilhelm Hallwachs in the year 1887. * Sheep can recognize individual human and sheep faces, and remember them for years. * Silumin is an alloy of aluminium and silicon used for casting purposes. * Molten lava is up to 100,000 times as viscous as water. * An acre of rich fertile farmland may contain up to 1,750,000 earthworms. * The first colour photograph was created by the Scottish physicist James Clerk Maxwell, with the help of the English photographer Thomas Sutton, in the year 1861. * Capybara is the largest living rodent in the world.