Please revert soon

We often receive mails that say “Please revert soon.”This is inaccurate. You can say: “Please reply soon.” Revert means reversing to a previous state, condition, practice etc. Example for revert: After the discipline master left the class, the girls reverted to their squabbling.

Leidenfrost effect

The Leidenfrost effect is a phenomenon in which a liquid, in near contact with a mass significantly hotter than the liquid’s boiling point, produces an insulating vapor layer keeping that liquid from boiling rapidly. This is most commonly seen when cooking; one sprinkles drops of water in a pan to gauge its temperature: if the[…]

Ice blocks or crushed ice?

“Mrs Heng prepared ice lemonade for her son’s birthday party. She would like the drink to remain chilled with ice for as long as possible. Which type of ice, blocks or crushed, should she use?” The short answer: Ice blocks. They have less surface area in contact area with the drink than crushed ice. So[…]

How to pronounce “一”

Chinese tip: “一” means one in Chinese. It is often the first Chinese character we learn as a kid. But do we really know how to read this? Do you read “一” in the first, second, third or fourth tone? There are three ways to read “一”: “衣”(一声)、“移”(二声)和“义”(四声)。 1) If you are using “一” to[…]

The Newton’s cradle

Fun Science: The Newton’s cradle is a device that demonstrates conservation of momentum and energy via a series of swinging spheres. If one ball is pulled away and is let to fall, it strikes the first ball in the series and comes to nearly a dead stop. The ball on the opposite side acquires most[…]

Guess what.

English tip: Sometimes, when we have a piece of good news to share, we get excited and we may start by saying “Guess what”. Now- the question is– do we add a question mark or a period after “guess what”? In this scenario, “guess what” is an imperative (a command/request) so it is conventionally punctuated[…]