Diving boards disappeared out of safety, but they don't cause most diving accidents

Horse diving was a popular attraction for 50 years

The event, which took place in Atlantic City, is exactly as it sounds: horses, directed by (sometimes scantily clad) riders, would jump from diving boards into pools. Although it was a popular spectacle for decades, it fell out of favor by the late 1970s.

Santa Barbara divers helped innovate deepwater diving technology

Divers in the Santa Barbara channel innovated a more efficient type of diving helmet in the 1960s that used helium to allow for longer, deeper excursions for oil surveying, abalone collecting, and more. These innovators have since set the standard worldwide for military and industrial diving.

Pickleball injuries were responsible for $350M in medical costs in 2023

Unsurprisingly, picklers over 50 account for 90% of the injuries, with the most common being sprains, strains, and fractures. Experts say a substantial pregame warm-up can prevent most injuries.

NASCAR’s SAFER barriers help reduce tragedies at races

Following the death of Dale Earnhardt Sr. in 2001, NASCAR changed its culture to be safety-first. Part of its changes were to install barriers along tracks that would help absorb the majority of g-forces in a crash. This Daily Downforce article walks through the history of the SAFER barriers, why NASCAR originally chose concrete, and how much of the tracks are covered today.

Learn how humans can protect coral reefs

When diving and snorkeling in environments containing reefs, avoid touching reefs, anchoring on them, or using sunscreen with active ingredients harmful to marine life. Properly recycling and disposing of trash in bins helps reduce microplastics and chemicals that can run off into wastewater and into the oceans.

The trend of onstage mishaps

In the past few years, performers have seen a rise in onstage accidents. While artists are doing their jobs, they face risks of dangerous falls, flying objects, and audience aggression. This article aims to explain why this trend may be occurring and emphasizes the importance of concert-going etiquette and adequate security.

Browse a pamphlet warning parents about the dangers of 'Dungeons & Dragons'

Bothered About Dungeons & Dragons was a nonprofit dedicated to counteracting what it considered the "Witchcraft Suicide Violence" of the fantasy roleplaying game. It includes a list of recent teenage suicides, arguing that they all had "one common denominator: ALL WERE HEAVILY INVOLVED IN DUNGEONS AND DRAGONS."

67 US high school athletes died from exertional heatstroke between 1982 and 2022

Many of those deaths were from football specifically, where student athletes play in hot conditions while wearing heavy protective gear. Few states mandate heat guidelines for school athletes, and this article says that's of increasing concern with more high heat index days.

Indoor rock climbing gyms have doubled in a decade in the US

The business saw a jump in growth amid low real estate costs after the 2008 Great Recession. The sport's culture has shifted from serving misfit loners to more family-friendly spots.

How billiard balls catalyzed the 'Plastics Century'

For centuries, billiard balls were made of ivory from elephant tusks. But when excessive hunting caused elephant populations to decline, they began to look for alternatives: celluloid, which would become known as the first plastic.

Most life insurance policies cover death by natural causes or accidents

However, some other causes aren’t always covered. Suicide in the first two years of coverage, high-risk activities or jobs, and war or terrorism aren’t typically covered by life insurance, for instance. However, some added benefits (or “riders”) can account for some of these situations.

Vitamin D supplement pills are linked to rising cases of vitamin D toxicity in the US

Vitamin D deficiency is common. But taking Vitamin D supplements in doses exceeding 4,000 IU/day (a measurement of vitamin biological activity) for prolonged periods can raise bodily concentrations of this vitamin to dangerous values. US National Poison Data indicates that the annual average of vitamin D poisonings from 2000-05 was 196, but this rose by 1,600% to 4,535 per year for the period of 2005-11.

Although rare, HFMD can spreads in pools due to poor bathroom hygiene

In pools with inadequate levels of chlorine, this disease can spread via the poop-to-mouth route, though this isn't one of the most common ways the disease is transmitted. People can become infected by swallowing contaminated pool water after little kids (or their parents) don't do an adequate job removing virus-laden feces from the child before the child enters the water.

The number of annual oil spills has dropped dramatically since the 1970s

Oil spills from oil tankers—which can have a sharp, short-term impact on oil prices—have become increasingly rare over the decades in part because of stricter regulations.

Unlike physical therapy, chiropractic lacks substantive, evidence-based support

Originating as a practice focused on removing blockages in the spine that impede the flow of mystical energy in the body, chiropractic has claimed to resolve many ailments, even those unrelated to the spine or skeletal system. However, no scientific studies have identified such blockages, and there are insufficient clinical trials supporting these treatments.

The X Games pioneered broadcast innovation with live drone coverage

In 2015, ESPN used untethered drones for the first time in US live sports—deploying them at the X Games to capture aerial footage from angles previously impossible.

Fireworks-related ER visits are on the rise—in 2024, they increased by 52% as compared to the prior year.

People often invest in alternative investments to diversify their portfolios

Because alternatives often have little correlation with traditional investments like stocks and bonds, adding them to a traditional portfolio can reduce its overall risk exposure.

An investigation suggests a Scottish island became awash in forever chemicals via seafoam and seaspray—raising questions about what that means for the safety of other coastal areas.

The board game Candyland was invented for children quarantined in polio wards.

In 1966, Dylan was in a motorcycle accident

At the height of his popularity, Bob Dylan disappeared. The press reported it was due to a near-fatal motorcycle accident, though specifics were never provided. When he returned some time later, with a new album and sound, Dylan fans treated the accident as a pivotal moment in the legendary artist's career. But there's ample proof the accident never happened and, at its core, was little more than a cover story for a burnt-out rock star.

Major scandals have undermined the reputation of the Olympics

With billions in public money in play and the high stakes of winning gold for one's country, the Olympics have had their fair share of scandals. This Global Investigative Journalism Network list highlights eight groundbreaking investigations by journalists about the Olympics. It includes the 2014 Russian doping scandal, venue corruption in Rio, and the decadeslong cycle of sexual abuse by an Olympic doctor.

The magic angle to skip a spinning stone is 20 degrees

The traditional shoreside activity—reputedly practiced by luminaries Shakespeare and Homer—can be broken down into its bare physics, from hydrodynamics and momentum to gravity.

NHL players used to not wear helmets or masks

Until the 1970s, hockey goalies didn't wear masks to protect their faces with any regularity. Instead, they took pucks off their cheeks, foreheads, and mouths, resulting in serious scars. Any player who entered the league after June 1, 1979, was required to wear a helmet, but several players who'd started before then chose to continue playing without one.

Some invasive species can provide benefits to ecosystems over time

In the 1990s, round gobies were introduced into the Great Lakes, rapidly spreading and competing with local sculpin and logperch. However, Lake Erie watersnakes, which were on the endangered species list, shifted their diet to be almost entirely made up of the plentiful round gobies, contributing to their loss of endangered status in 2011.

Avalanches happen when layered snow fails, often on perfect ski slopes

Snowpacks form unstable layers as weather shifts; a weak, refrozen layer buried under fresh snow can shear and release a slab avalanche on certain steep slopes. Triggers range from new snowfall to the movement of skiers, while survival depends on the presence of ski partners, beacons, and rescue teams.

'Super Mario Bros.' helped save the video game industry

A 1983 crash left the industry in tatters, desperate for a hit. Nintendo’s focus on a more immersive home experience was realized in “Super Mario Bros.,” bringing the industry from the arcade to the living room. The title eventually sold over 40 million units.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

Fish populations in the Great Barrier Reef have increased after installing waterproof speakers on the ocean floor that played recordings of sounds from healthy coral reefs.

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.

Human-to-human transmission of hantavirus remains extremely rare, so the 2026 hantavirus cruise ship outbreak doesn't mean we're facing a COVID-style pandemic risk.

In 2009, the nation was gripped by the story of a missing young boy who was believed to be floating over Colorado in a homemade balloon, until it was revealed that he was at home the whole time.

A pickleball's loud 'pop' sound can reach 120 decibels, which is equivalent to a hammer hitting a nail

70 years ago today, city officials in Santa Cruz, California, banned rock 'n' roll to protect its youth from corruption after witnessing a 'provocative' concert the night before.

Long before Major League Baseball began allowing instant replay for balls and strikes, an umpire reluctantly used the technology to determine whether a hit was a home run, a move that inadvertently ushered in a new era for the sport.

The animatronic shark from Steven Spielberg's 'Jaws,' the first modern blockbuster, was a complex underwater apparatus called 'Bruce.'

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

The 1987 Nintendo video game 'Stadium Events' isn't known for being particularly fun, but its scarcity has made it a highly sought-after item that has sold for up to $35K at auction.

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

'Saturday Night Fever,' the 1977 film that introduced disco to the mainstream, was based on a fabricated magazine story.

Read a deep dive on the 'all-purpose healing' peptide BPC-157.

Volcanoes 'die' when their supply of magma runs out, if they are shifted away from their underlying magma reservoir, or if they get clogged by collapsing or their magma cooling back into rock.

Apollo astronauts left items in the moon's 'toss zone,' including golf balls, family photos, and bags of human waste, to make room for lunar rocks.

Recent research found that the brain doesn't seem to massively rewire following amputation—upending earlier beliefs about the cause of phantom limb pain.

In recent years a child anxiety expert has created and tested a novel phobia and anxiety treatment approach for children, focused on changing how parents respond to the fears.

Dozens of S&P 500 stocks, including Coca-Cola and Walmart—known as the dividend aristocrats—have increased dividends every year for 25 years

In its famous catalog, Sears sold $600 DIY house kits from 1908 through the 1940s, resulting in an estimated 100,000 'Sears and Roebuck homes.'

Poison ivy's characteristic rash is caused by an allergic response to an oily compound in the plant called urushiol.

Before the current East Wing ballroom project, only two White House renovations in the past 100 years cost more than $10M.