Subcategories include very low birth weight (VLBW), which is less than 1500 g (3 pounds 5 ounces), and extremely low birth weight (ELBW), which is less than 1000 g (2 pounds 3 ounces). Normal weight at term delivery is 2500â4200 g (5 pounds 8 ounces â 9 pounds 4 ounces).
How do you define beauty? What are the factors that govern whether or not you find someone physically attractive? This question has plagued philosophers and artists for millennia. And now, modern scientists think they're close to finding that magical formula for physical beauty. Aside from the obvious cues,--youthfulness, smooth skin, bright eyes--it pretty much all comes down to math.
Neither the body of scientific information nor the methods of science can answer certain questions. Science cannot determine whether God exists, what is moral or immoral, what is ethical or unethical. For example, science cannot say it is immoral to destroy vast rain forests or abort a human fetus.