Researchers at the University of Michigan have developed a kind of electronic “invisible ink” that can help alert users to any unauthorized tampering with a device. When the chip is exposed to light ...

Which erasable pens are best? Erasable pens exist for those who desire to be able to fix a mistake without having to use pencil lead as a means of stationery. Erasable pens make it possible for users ...

(MENAFN- IANS) Mumbai, Jan 15 (IANS) Amid controversy over people allegedly wiping off the ink on their fingers immediately after casting votes, the Maharashtra State Election Commission (SEC) on ...