Why was lead-based paint banned?

Why was lead-based paint banned? Lead-based paint was widely used in the United States, because of its durability. The United States banned the manufacture of lead-based house paint in 1978 due to health concerns. Lead has long been considered to be a harmful environmental pollutant. Cited cases of lead poisoning date back to the early […]

Are Jack in the Box burgers real meat?

Are Jack in the Box burgers real meat? For example, Jack in the Box states that it uses 100 percent beef in its burgers, but a comprehensive Ingredient & Allergen Statement lists a slew of other ingredients found in the patty including saturated-fat-filled hydrogenated cottonseed oil, natural flavors, corn fiber, corn starch, and sugar. What […]

Why is laparoscopic surgery done?

Why is laparoscopic surgery done? Why is laparoscopy performed? Laparoscopy is often used to identify and diagnose the source of pelvic or abdominal pain. It’s usually performed when noninvasive methods are unable to help with diagnosis. What is the difference between laparoscopic and open surgery? Minimally invasive In more conventional open surgery, a single incision, […]

How did Joseph Thomson describe the atom?

How did Joseph Thomson describe the atom? In Thomson’s model, the atom is composed of electrons surrounded by a soup of positive charge to balance the electrons’ negative charges, like negatively charged “plums” surrounded by positively charged “pudding”. The 1904 Thomson model was disproved by Hans Geiger’s and Ernest Marsden’s 1909 gold foil experiment. Who […]

What is bullosa butterfly syndrome?

What is bullosa butterfly syndrome? Epidermolysis bullosa is a rare genetic condition that makes skin so fragile that it can tear or blister at the slightest touch. Children born with it are often called “Butterfly Children” because their skin seems as fragile as a butterfly wing. What is epidermolysis bullosa and how is it caused? […]

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