Katy E. asks: Are there any differences between razors and shaving cream for men and women beyond cosmetic? Shaving companies almost universally put out both a men’s and women’s version of each of their products, with the women’s version generally costing quite a bit more. But is there actually any difference between the so-called “gendered razors” and shaving cream or […]
Read more
No one can dispute George Lucas’ significant contributions to cinema history, including both the Star Wars and Indiana Jones franchises. His company also played a role in advancing special effects, top quality post-production audio and even digital sound systems for movie theaters. But it is nice to know that he didn’t invent everything out of whole cloth; when developing the Star Wars movies, […]
Read more
Noah asks: Why is it that aluminium foil on the outer part is very shiny, but the other side isn’t? The most abundant metal in the Earth’s crust, aluminum naturally occurs as a compound with other elements, such as aluminum oxide or potassium aluminum sulfate. As such, it was not isolated as a separate element until 1825 when a Danish […]
Read more
Jim R. asks: Why is it “righty tighty, lefty loosey” with screws? One of the six simple machines, a screw is nothing more than an inclined plane wrapped around a center pole. While today screws come in standard sizes, and typically are tightened by turning clockwise (and loosened by turning counterclockwise), this is a recent invention. A great example of […]
Read more
Mekala asks: Is the black box in airplanes really black? Also, who invented it? Thanks! Like many inventions, versions of an airplane “black box” were independently invented by several people, in this case beginning around the 1930s and 1940s. As for the version that began being installed on commercial aircraft, it was invented in response to a tragic loss of […]
Read more
Cunningham’s Law is an internet adage that states “The best way to get the right answer on the Internet is not to ask a question, but to post the wrong answer.” It’s an interesting hypothesis for sure. And, if you’ve spent any time on the internet whatsoever, you’re likely well aware that posting something incorrect online is a sure-fire way […]
Read more
California’s largest lake was originally created by accident, grew to be a popular fishing destination and wildlife refuge, and today is on the verge of becoming an environmental and public health disaster. Due south of Coachella Valley, and roughly north of the heavily agricultural Imperial Valley, the Salton Sea is the lowest part of a basin by the same name […]
Read more
Jill R. asks: Why do police officers wear blue uniforms instead of some other color? Police services like the NYPD and the LAPD are bona fide pop culture staples that have been featured in countless movies and TV shows. Their distinctive blue uniform is known the world over, but have you ever stopped to think, “Well, why is it blue?” […]
Read more
MK23 asks: How do they figure out the maximum occupancy for a building? Generally speaking, the maximum occupancy of a room or building is primarily determined by the available exits, with each exit accommodating only a certain number of people before bottlenecking occurs. The other key component in determining the max occupancy of a building or room is the intended […]
Read more
Body Integrity Identity Disorder, or BIID, is a condition where a person feels an overwhelming desire to become an amputee. Some also consider it to include those who feel a desire to have some sort of other disability like becoming paralyzed or deaf. In the case of those desiring to become amputees, the limb that they want to amputate is […]
Read more
The town of Centralia, Pennsylvania has been on fire for more than fifty years. Founded in 1862, Centralia popped up in response to the booming coal mining industry. Anthracite coal, a type of coal once in high demand for heating homes, lay under the town and surrounding area in massive quantities. (In fact, approximately 95% of all anthracite coal in […]
Read more
Glossyhorses asks: Why can’t you have your fences over 6 feet tall in the backyard and half that in the front? The primarily purposes of a fence include to keep animals in, people out, and perhaps even so others can’t see into your yard. But if this is the case, why are there laws that limit how tall fences can […]
Read more
Whether it’s a Bachelor Party, Dollar Drinks, Ladies’ Night or just Happy Hour, many of us get carried away once in awhile, and end up suffering the next day. While most home remedies are ineffective for managing the pain and nausea, there are a few steps you can take to either prevent, or alleviate, the ill-effects of having one (or […]
Read more
M. Favro asks: Why can my house pipes freeze in winter sometimes, but fire hydrants completely exposed to the cold never seem to burst? The fire hydrant that we know today traces its origins back to fire plugs. Water mains that transported fresh water in a city or town used to be made of hollowed out logs buried beneath the […]
Read more
Guy C. asks: I live in America and was just wondering how far below and above my land do I own? On paper, the concept of land ownership sounds very simple- you pay money and in return you’re given unfettered access to a predetermined amount of land. But how much of that land do you actually own? Do you own […]
Read more
Marcus asks: Why do songs get stuck in your head? Whether yours is “Call Me Maybe,” “Who Let the Dogs Out,” “Mickey,” or something equally infectious, at one time or another, you’ve probably had a fragment from a catchy (or obnoxious) tune stuck in your head. Where Do Sticky Songs Come From? Due to the involuntary nature of songs getting […]
Read more
Julie H. asks: How do fingerprints form? I’d also like to know if you burn or remove the skin will they regenerate? Emerging on the buds of fingers while the fetus is still in the womb, the whorls, arches and loops on the ends of digits are said to be unique to each individual. Durable as well, even when fingerprints […]
Read more
Mark K. asks: I was just wondering if a human ate another human in an apocalyptic scenario or something would this be unhealthy or just awful and gross? Yes. Unhealthy For the Devourer Depending on what parts are eaten (the most infected include the brain, spinal cord, bone marrow and small intestine), human cannibals run the risk of contracting a […]
Read more