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Born in the early 1900s, Chalmers invented the menstrual cup out of a passion for bettering women's sexual health. Chalmers created her first version of the menstrual cup in 1937, shortly after the invention of the tampon. She sought to create a reusable menstrual product to compete with the existing disposable menstrual products on the market.
Most ancient types of cup from the Americas were pottery, but around the Gulf of Mexico, Native American societies used the shells of the Horse conch for drinking cups, among other purposes. [30] The tall, decorated and slightly waisted qiru or keru of Andean civilizations first appears in the Early Intermediate Period (100–600 AD). They seem ...
A paper cup is a disposable cup made out of paper and often lined or coated with plastic [1] [2] or wax to prevent liquid from leaking out or soaking through the paper. [3] [4] Disposable cups in shared environments have become more common for hygienic reasons after the advent of the germ theory of disease.
If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. When and how was walking invented? — Rayssa, 11, Newark, New Jersey This is an important ques.
Actually made of poured concrete, the cup stands about 68.1 feet (20.8 m) tall. Leo Hulseman, a former employee of the Dixie Co. in the 1930s, created the "Solo Cup", a paper cone he made at his home and sold to bottled-water companies. Later the company developed other products, like wax-coated cups and the plastic Cozy Cup.
The sippy cup, training cup (American English) or beaker (British English) is a modern drinking cup designed for toddlers which prevents or reduces spills. Sippy cups, as opposed to an open cup , have a top which prevents spills, and the child drinks either through a spout or straw.
A 2011 book estimated that a chain of doughnut shops used one billion disposable coffee cups in a year, enough to circle the Earth twice. [10] A 2012 article in OnEarth said that Starbucks used over four billion disposable coffee cups in 2011. [11] The Cup Noodles brand of instant noodles uses expanded polystyrene foam cups to contain the ...
It's believed to be the largest one ever made, measuring 5-feet across and drenched in over 70 pounds of chocolate. 3. There's such a thing as a spreadable Reese's.