Ben Biggs

reference The deadliest cancers aren't necessarily the ones that kill the most people. Some are rare, but have poor survival rates.

Reference Copperhead snakes are common in North America, and have the distinction of biting more people in the United States than any other snake.

Inside How It Works 166: Discover 10 of the strangest facts about your brain.

Reference Geiger counters use the natural process of ionization to detect and measure radiation levels

Reference Cancer can affect any part of the body, requiring doctors to employ robust methods such as MRI scans, blood tests and computed tomography to detect and classify it.

REFERENCE Equinoxes occur twice a year when the sun is directly above the equator, and herald the beginning of spring and autumn.

reference Acid rain is any form of precipitation that contains acidic components, such as sulfuric or nitric acid. It affects nearly everything: plants, soil, trees, buildings and even statues.

reference Centrifugal and centripetal are two closely related forces that describe circular motion, but the meanings are often mixed up.

Reference In the third week of pregnancy, there won't be any major outward changes in a woman's body, but some pregnancy symptoms may have started.

reference A colon cleanse is all the rage among wellness buffs. But health experts say that they aren't helpful and can actually be dangerous.

reference Orcas, or killer whales, are the largest of the dolphin family.

reference Spiny on the outside, sweet on the inside, pineapples are one fantastic fruit.

Reference Spinach is Popeye the Sailor Man's favorite veggie for good reason: it's dense in vitamins and minerals, low in calories and may help with several health conditions.

Reference The elements in the periodic table are arranged according to the transition from metal to nonmetal elements.

Reference Chemistry is the study of matter, its properties, how and why substances combine or separate to form other substances, and how substances interact with energy.

reference Riboflavin is a B-complex vitamin that helps the body break down carbohydrates, proteins and fats to produce energy.

REFERENCE What makes you, you? Psychologists sketch out personality traits using the "Big Five".