Leopoldo Sanczyk

“The Sun heats the ground, and the ground heats the air. Visible light hits Earth and heats it. Earth reradiates that same energy as infrared, and it’s the infrared that gets trapped by the greenhouse gases.”
― Neil deGrasse Tyson, StarTalk: Everything You Ever Need to Know About Space Travel, Sci-Fi, the Human Race, the Universe, and Beyond

“In Uganda, for example, where abortion is illegal and sex education focuses on abstinence, the abortion rate is more than twice the rate in the United States and four times that of western Europe, where both abortion and contraception are legal and widely available. ■”
― Neil deGrasse Tyson, StarTalk: Everything You Ever Need to Know About Space Travel, Sci-Fi, the Human Race, the Universe, and Beyond

“Knowledge of physical laws can, in some cases, give you the confidence to confront surly people. A few years ago I was having a hot cocoa nightcap at a desert in Pasadena, California. Ordered it with whipped cream, of course. When it arrived at the table, I saw no trace of the stuff. After I told the waiter my cocoa had no whipped cream, he asserted I couldn't see it because it sank to the bottom. But whipped cream has low density, and floats on all liquids that humans consume. So I offered the waiter two possible explanations: either somebody forgot to add the whipped cream to my hot cocoa or the universal laws of physics were different in his restaurant. Unconvinced, he defiantly brought over a dollop of whipped cream to demonstrate his claim. After bobbing once or twice the whipped cream rose to the top, safely afloat.

What better proof do you need of the universality of physical law?”
― Neil deGrasse Tyson, Astrophysics for People in a Hurry

“And yes, every one of our body’s atoms is traceable to the big bang and to the thermonuclear furnaces within high-mass stars that exploded more than five billion years ago.”
― Neil deGrasse Tyson, Astrophysics for People in a Hurry