The Lewis and Clark Trail is a historic route that explorers Meriwether Lewis and William Clark took on their 1803-1806 voyage to the Pacific Ocean. They were sent by President Thomas Jefferson to scout the western territories and establish a relationship with the Sioux tribes. The trail crosses 19 states and covers 4600 US miles, […]
The Lewis and Clark Expedition, led by Meriwether Lewis and William Clark, explored the Pacific Northwest in 1804-1806. The expedition aimed to assess resources, declare sovereignty over Indian tribes, and find a direct water passage for trade. They encountered Native Americans, hired interpreters, and documented new animals. Thomas Jefferson ordered the expedition to claim the […]
Lewis and Clark were American explorers who led the first expedition to the Pacific coast of the US from 1804 to 1806. Meriwether Lewis and William Clark explored newly claimed land called Louisiana, met Sacagawea, and declared sovereignty over the indigenous people of the area. After the expedition, Clark became governor of the Missouri Treasury, […]
The term Lewis acid is named after Gilbert N. Lewis. Early definitions of acids and bases were based on reactions with metals and alkalis. Arrhenius defined acids as substances that form H+ ions in water, while Bronsted-Lowry defined acids as proton donors. Lewis defined acids as electron pair acceptors and bases as electron pair donors. […]
Lewis’s theory of acids and bases explains how they interact with each other. A Lewis acid accepts an electron pair, while a Lewis base donates an electron pair. This theory is useful in explaining chemical reactions, such as the formation of carbonic acid. Unlike the Bronsted-Lowry model, Lewis’s theory is based on electron transfer. Lewis […]
Lewis Carroll, born Charles Lutwidge Dodgson, was an English author, mathematician, and photographer of the Victorian era. He is best known for his children’s books, including Alice’s Adventures in Wonderland, and was also an eminent photographer, especially of young girls. Carroll taught at Christ College until his death in 1898 and his books remain beloved […]
Charles Lewis Tiffany founded Tiffany & Co., a prestigious seller of jewelry and luxury goods. He started as a clerk and opened a stationery store in New York City in 1837. The company expanded to include silverware and jewelry, and set up shop in Paris. Tiffany set the standard for 925 sterling silver and opened […]
