Preview can do more than just show you a file in macOS, as it is especially handy for annotating images and editing PDFs.

Andrew Robinson is the author of Lost Languages (2002) and other books on scripts and decipherment. He is based in London. How the world’s largest language family spread — and why others go extinct ...

If you have a PC with a touchscreen without a physical keyboard, a pretty nifty feature that’s native to the Windows OS is the Touch Keyboard which lets click/tap on to enter text. PC users can turn ...

How does the cell convert DNA into working proteins? The process of translation can be seen as the decoding of instructions for making proteins, involving mRNA in transcription as well as tRNA. But ...