What Did Einstein Call A Black Hole?

What did black holes used to be called? In 1967, John Wheeler invented the name “black hole” for the first time. Before that, they were called “dark stars”. In 1970, Stephen Hawking and Roger Penrose showed that black holes must exist. Although the black holes are invisible (they cannot be seen), some of the matter […]

How Will You Convert Ethane To Butane?

How will you convert ethane to? Ethane when reacted with Chlorine (halogenation) in presence of sunlight gives ethyl chloride. Now, Ethyl chloride on reaction with KOH (Alcoholic) gives ethene. via How do you convert butane? Butane can be converted into 1,2-dibromobutane by free radical substitution in the presence of Br2 and UV light. via How […]

Is Wonder Woman Bulletproof?

Can Wonder Woman take bullets? Though it makes little sense, considering that she has the powers of a Greek god, that Wonder Woman isn’t bulletproof as part of her wide range of invulnerability (such as walking through a town covered with deadly mustard gas with absolutely no ill-effects), we likely will always see her using […]

Can Babies Drown In Water Birth?

How does the baby not drown during a water birth? By 10–12 weeks of gestation, developing babies begin taking “practice” breaths. But these breaths provide them with no oxygen, and only refill the lungs with more amniotic fluid. Because it’s normal for a fetus’s lungs to be filled with fluid, a fetus can’t drown in […]