Late 1600s – Dutch scientist Antonie van Leeuwenhoek constructed a microscope with a single spherical lens. It magnified up to ×275. 1800s - the optical quality of lenses increased and the microscopes ...

Try these interactive flashcards based on GCSE biology past papers. By working your way through the flashcards created by experts, you can prepare for your biology exams and make your revision more ...

Most of the big ideas in science have the decency to confine themselves to one or two disciplines. Evolution is strictly in the biological realm. E=mc 2 wouldn't be caught dead outside physics. And ...

Abstract: As the cornerstone of photovoltaitics industry, silicon solar cell draws extensive interests and its progress on conversion efficiency concerns the implementation of carbon neutrality ...

The iPhone has always been great for photography, but when you're taking selfies, you're at the mercy of the handset's less-capable front camera. This new phone case we just came across solves that ...

What is the immune system? The immune system works to keep germs and other foreign substances out of the body and destroy any that get in. It's made up of a complicated network of cells and organs. It ...