Carl Sagan on books ✍️
"What an astonishing thing a book is. It’s a flat object made from a tree with flexible parts on which are imprinted lots of funny dark squiggles. But one glance at it and you’re inside the mind of another person, maybe somebody dead for thousands of years."
Lise Meitner, a physicist who fled Nazi Germany, helped discover nuclear fission in the 1930s with Otto Hahn. Her calculations explained the process of fission, but she was overlooked for the Nobel Prize in Chemistry in 1944, which was awarded solely to Hahn.
Émilie du Châtele, the woman who translated and built upon Newton's works 📰
Émilie du Châtelet (1706 - 1749) was a French mathematician, physicist, and philosopher who made significant contributions to the field of physics during the early 18th century.
She is best known for translating and adding extensive commentary to Isaac Newton's "Philosophiæ Naturalis Principia Mathematica," which remains the standard French version today.
Du Châtelet also developed the concept of kinetic energy, building upon the works of Newton and Leibniz, and argued that the energy of a moving object was proportional to the square of its velocity. Despite facing gender-based challenges, her work had a lasting impact on the development of modern physics.
By planting strips of flowers among their crops, farmers are tapping into nature’s own pest control system to dramatically reduce the need for chemical pesticides.
This smart practice, known as farmscaping, involves strategically integrating flower strips into croplands. These floral corridors create ecological havens that supply pollen, nectar, and shelter for beneficial insects such as ladybugs, hoverflies, and parasitic wasps.
When pest numbers are low, the flowers provide essential food that keeps these natural predators in the area. As soon as pests appear, the beneficial insects are already on site and ready to hunt. Notably, ladybug larvae can consume up to ten times more aphids than adults, making them incredibly effective at protecting crops from aphids, mites, and other damaging pests.
For best results, experts recommend sowing a diverse mix of native, nectar-rich plants. Sweet alyssum is a favorite for attracting ladybugs, while herbs like dill, fennel, parsley, and cilantro support short-tongued beneficial insects. Adding daisy-family flowers such as yarrow, calendula, and marigolds helps maintain a balanced ecosystem.
By adopting this habitat-based approach, farmers can significantly cut back on chemical sprays, improve soil health, support greater biodiversity, and create safer working environments, all while maintaining or even boosting crop yields.