It marks the origin of the pen knife. Before 1850, the process for vulcanization of rubber had not been discovered, and the only way to correct a writing mistake was to scratch the ink off the ...

There are three types of pen ink, he explained: water-based, used in gel, rollerball, and fountain pens; alcohol- or solvent-based, used in felt-tip pens like Sharpies that have that distinctive ...

The heir to the Belgian throne started a two year Master's degree in public policy today at Harvard's John F. Kennedy School of Government. (Better known as just the Kennedy School.) "Hello USA !" the ...

E-ink tablets come with a stylus to write directly on a screen that’s textured to give you that pen-to-paper feel you get with standard journals. The best ones have virtually no latency between ...

In the race for the most perfectly minimalist shoe, a new frontrunner has appeared: Behold the Muji x Reebok Court Sneaker—a sleek, stripped-down variation on the classic Reebok Club C 85 that's ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Sarah Witman Sarah Witman is a writer focused on batteries and charging ...

Gel electrophoresis is a laboratory method used to separate mixtures of DNA, RNA, or proteins according to molecular size. In gel electrophoresis, the molecules to be separated are pushed by an ...

Whether it’s from acne, surgery or another wound-inducing experience, skin scarring is almost as inevitable as it is permanent. For most scars that create textural changes to your skin, it ...

We may earn commission on some of the items you choose to buy. There are almost too many advantages to getting a gel manicure: they allow for natural and intricate designs, are offered at almost ...

If you prioritize a cool and comfortable sleep experience, a gel mattress can make a world of difference. We tested several options and here are our top picks. McKenzie, a Certified Sleep Science ...

Earn 5% cash back on office supplies and telecom services and 2% at restaurants and gas stations, up to a limit. With a $0 annual fee and elevated rewards in select categories, this card is a good ...