Practice 25 important UPSC Science MCQs covering Physics, Chemistry, Biology, and Environmental Science to strengthen your conceptual understanding for UPSC Prelims preparation.

To misquote a famous song, "Diamonds are industry's best friend." Cubic diamond is the hardest mineral on Earth and is used in everything from precision cutting tools to high-performance ...

Atoms measure roughly 0.1 nanometers across, a scale so small that scientists spent more than six decades developing instruments capable of resolving them with any clarity. The journey from the first ...

The tax break on tip income is not automatic. You need to file a new form. The U.S. Treasury Department has a list of dozens of occupations that 'customarily and regularly received tips' that qualify ...

DEAR ABBY: It seems that everywhere I go, people expect tips. Yesterday, I pulled up to the drive-through at a cookie store, and before I paid or was handed my cookies, the clerk asked, “Would you ...

First experimental observation of matter-wave diffraction in a short-lived electron-positron atom using a graphene-based diffraction grating. (Nanowerk News) One of the discoveries that fundamentally ...

Turn your walk into a better workout, build strength without weights and more exercise advice for the year ahead. Nicholas Sansone, Elliott Jerome Brown Jr., and Brittany Greeson for The New York ...

Most people think tipping with a credit card is the same as tipping with cash. After all, 20% is 20%, right? But if you chat with anyone in the service industry who primarily gets paid in tips, you'll ...

Thank your driver for those endless holiday season deliveries with a $5 tip as part of Amazon's limited-time "Thank My Driver" promotion. Ajay has worked in tech journalism for over a decade as a ...

DEAR MISS MANNERS: Why is tipping expected? I was under the impression that it was up to the customer. In my state, servers are paid minimum wage, so it’s not a question of being underpaid. And why am ...

'Tis the season of giving back — whether it's in the form of gifts, donations or a thank-you tip to seasonal workers. Discussions around tipping have sparked debate in recent years as Americans found ...

Holiday tipping is a way to thank people who provide you with regular services throughout the year. Service providers to consider tipping include babysitters, hairstylists, housekeepers, and dog ...