- Musician Johannes Bach in 1604
- clergyman/college benefactor John Harvard in 1607
- surgeon/women's rights leader Mary Walker Edwards in 1832
- Baseball Hall ...Read more
A man has 3 cards face down on a table. One is a jack and two are aces. He knows the order but you do not. You can ask him one yes or no question, but when you do you have to point to one of the cards. If you point to an ace, he will tell the truth, if you point to the jack, he will randomly say yes or no. You have to find one of the aces.
Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.
Is it possible to dig all the way through the Earth to ...Read more
SEATTLE — The bomb cyclone that knocked out power for some half a million people in Western Washington last week exposed the weaknesses in the Pacific Northwest's energy grid.
As the massive low-pressure system spun off...Read more
- Industrialist Andrew Carnegie in 1835
- automobile designer Karl Benz in 1844
- social reformer Carrie Nation in 1846
- writer Leonard Woolf in 1880
- ...Read more
After you have dealt about half of the 52 cards for a bridge game (with four players), the phone rings. You put down the undealt cards to answer the phone. When you return, none of the cards has been touched, and no one can remember where the last card was dealt. Without counting the cards in any hand, or the number of cards yet to be dealt, how can you finish dealing rapidly and accurately, giving each player exactly the same cards they would...
The dead zone in the Chesapeake Bay, where there’s low oxygen for underwater life, was near its average size in 2024, according to new data from the Chesapeake Bay Program.
The dead zone is the area in which there is a ...Read more
For a two-year period, an extreme drought across Colorado and much of the West dried farmers’ fields, lowered water levels in reservoirs, fueled extreme wildfires and left streams dangerously low.
A new Gold Rush is taking shape on a quiet stretch of Kansas prairie. There, a clutch of startups backed by the likes of Bill Gates are searching below the surface for naturally occurring hydrogen, a fuel that can generate...Read more
- Zachary Taylor, 12th president of the United States, in 1784
- architect Cass Gilbert in 1859
- artist Henri Toulouse-Lautrec in 1864
- musician Scott Joplin ...Read more