Education Science Uncategorized

IT’S AMAZING central African arrow landed in the small northern German

In 1822, An Arrow Shot In Africa Landed In Northern Germany—A Biologist Tells The Story For centuries, scientists had the wrong idea about [+]what birds did to survive the winter. Then, in 1822, the truth revealed itself in a most fascinating way. getty By the 1800s, bow and arrow technology was quite sophisticated–the sturdiest recurve bows Read More…

Food History Mahogany Knowledge Tree Science

Frederick Jones’ mobile refrigeration unit invention

The History Page   That fresh produce in your fridge? It’s there because of Frederick Jones’ mobile refrigeration unit, invented in 1938. Before that, transporting perishable food across the country was nearly impossible. Born in 1893, Jones left school in 8th grade but went on to earn an engineering license by age 20. His natural talent Read More…