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What farm animals did NASA send into space in 1961 to test space food, only to have them float around the cabin eating everything?

Mice

Chickens

This never happened - NASA used primates

Rabbits

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Top 10 Most Bizarre Sports That Are Still Played Today

Top 10 Most Bizarre Sports That Are Still Played Today

⏱️ 9 min read

In Finland, thousands of competitors gather annually to carry their spouses through obstacle courses, while in England, people chase a nine-pound wheel of cheese down a perilously steep hill at speeds up to 70 miles per hour. These aren't historical curiosities or one-time stunts—they're organized, competitive events with dedicated followings, official rules, and often serious injuries. The world of unusual sports reveals humanity's endless creativity in finding new ways to compete, test limits, and occasionally make absolutely no sense whatsoever.

Quick Facts

  • The World Toe Wrestling Championship has been held annually in Staffordshire, England since 1976 with strict rules modeled after arm wrestling.
  • Competitive chess boxing alternates between four-minute chess rounds and two-minute boxing rounds, requiring mastery of both mind and body.
  • Underwater hockey was invented in 1954 by British diving clubs as winter training and is now played in over 36 countries.
  • Wife Carrying originated in Finland and awards the winner their partner's weight in beer at the annual championship.
  • Sepak Takraw combines volleyball, soccer, and gymnastics, with players performing acrobatic kicks over a five-foot net.

1. Cheese Rolling at Cooper's Hill Claims Dozens of Injuries Each Year

Every spring on Cooper's Hill in Gloucestershire, England, competitors chase an eight-pound Double Gloucester cheese wheel down a 200-yard slope with a 1:1 gradient—essentially a 45-degree angle. The cheese reaches speeds of 70 miles per hour while runners tumble, flip, and crash their way down, with St. John Ambulance crews stationed at the bottom to treat the inevitable sprains, broken bones, and concussions. The event dates back to at least 1826, though some claim its origins lie in pagan harvest rituals. In 2023, organizers used a foam replica cheese for safety reasons after insurance costs skyrocketed, though purists argue this diminishes the tradition's authenticity.

2. Chess Boxing Demands Excellence in Both Mental and Physical Combat

Created by Dutch performance artist Iepe Rubingh in 2003, chess boxing consists of 11 alternating rounds—six of chess and five of boxing—beginning with a four-minute chess round played on a board inside the ring. Competitors wear headphones during chess rounds to block out crowd noise, and victory comes through checkmate, knockout, or judges' decision. The World Chess Boxing Organisation now oversees competitions across Europe and Asia, with fighters needing a minimum Elo rating of 1600 to compete professionally. Former light heavyweight champion Nikolai Sazhin demonstrated the sport's brutal demands by winning matches through both strategic chess play and devastating right hooks.

3. Underwater Hockey Features Six Players Pushing a Puck Along Pool Floors

Invented in 1954 by British diving instructor Alan Blake as winter training for his sub-aqua club, underwater hockey (also called Octopush) is played with short sticks, a lead puck, and snorkeling equipment in pools typically 10-12 feet deep. Six players per team hold their breath for extended periods while pushing the three-pound puck across the bottom toward goals spanning approximately 10 feet. The sport gained official recognition from the Confédération Mondiale des Activités Subaquatiques in 1980, and the world championships now attract teams from 36 countries. Matches last 30 minutes with two 15-minute halves, and the constant need to surface for air creates a dynamic, three-dimensional strategy unlike any surface sport.

4. Wife Carrying Championships Award Beer Equal to the Carried Partner's Weight

The Wife Carrying World Championships, held annually in Sonkajärvi, Finland since 1992, requires male competitors to carry a "wife" (who can actually be anyone over 17 years old and at least 108 pounds) through a 253.5-meter obstacle course featuring water hazards and hurdles. The most popular carrying technique is the "Estonian carry," where the wife hangs upside-down with legs around the carrier's shoulders, lowering the center of gravity. Winners receive their partner's weight in beer, and the current world record stands at 55.5 seconds, set by Lithuanian duo Vytautas Kirkliauskas and Neringa Kirkliauskienė in 2021. The sport has spawned international competitions across North America, Australia, and Asia, with slight variations in rules and course design.

5. Sepak Takraw Players Execute Gravity-Defying Bicycle Kicks Over High Nets

Popular across Southeast Asia for over 500 years, Sepak Takraw combines elements of volleyball, soccer, and martial arts, with players using everything except their hands to hit a woven rattan ball over a 5-foot-high net. Teams of three players called a regu compete on a court identical in size to a badminton doubles court (20 by 44 feet), performing acrobatic kicks that often involve full backflips mid-air. The sport gained official recognition at the 1990 Asian Games in Beijing, and Thailand, Malaysia, and Myanmar dominate international competition. Professional players train extensively in gymnastics to execute the sunback spike—a backward somersault kick that sends the ball hurtling toward opponents at speeds exceeding 90 miles per hour.

6. Toe Wrestling Competitors Lock Feet in a Battle of Barefoot Strength

Established in 1976 at Ye Olde Royal Oak Inn in Wetton, Staffordshire, toe wrestling follows rules similar to arm wrestling, with opponents locking big toes and attempting to pin their rival's foot for three seconds. Matches are best-of-three affairs, alternating feet, and competitors must remove footwear and socks while keeping their buttocks on specially designed "toedium" platforms. The sport gained widespread attention when Alan "Nasty" Nash won five consecutive world championships between 1994 and 2000, and it briefly applied for Olympic status in 1997 before being rejected. Modern competitors undergo rigorous toe strengthening exercises and occasional toenail injuries remain an occupational hazard.

7. Bossaball Blends Volleyball With Trampolines and Samba Rhythms

Created in Spain in 2005 by Belgian musician Filip Eyckmans, Bossaball is played on an inflatable court featuring trampolines on each side of the net, allowing players to execute volleyball spikes from heights exceeding 10 feet. Teams of four or five players score points through volleyball-style play, with additional points awarded for difficult maneuvers performed on the trampoline sections. A referee-musician controls the pace with a whistle, microphone, and DJ equipment, playing samba, bossa nova, or other music between points. The sport has gained official followings in Brazil, Argentina, Turkey, and the Netherlands, with the trampoline element enabling spectacular athletic displays impossible in traditional volleyball.

8. Extreme Ironing Combines Household Chores With Dangerous Outdoor Activities

Born in Leicester, England in 1997 when Phil Shaw decided to combine his love of rock climbing with his hatred of ironing, extreme ironing involves pressing clothes in remote, dangerous, or unusual locations. Participants have ironed while rock climbing in Chile, scuba diving in Egypt at depths of 100 feet, parachuting over California, and even on the slopes of Mount Everest at 17,000 feet. The Extreme Ironing Bureau, established in 2002, maintains records and standards for verification, requiring photographic evidence and a recognizably ironing-board-shaped surface. The first Extreme Ironing World Championships in Munich in 2002 attracted competitors from ten countries who competed in five disciplines: urban, forest, water, rocky, and freestyle.

9. Camel Wrestling Features Specially Bred Male Camels in Seasonal Competitions

Popular along Turkey's Aegean coast for over 2,400 years, camel wrestling involves two male Tülu camels (a crossbreed between Anatolian and Arabian varieties) competing during their mating season when testosterone levels peak. Matches occur in packed stadiums holding up to 20,000 spectators, with owners adorning their camels in decorative rugs and bells before the 10-15 minute bouts. A camel wins by making its opponent retreat, scream, or fall, and handlers stand ready with ropes to separate the animals if aggression becomes dangerous. The sport faced controversy and declining participation in the 2000s due to animal welfare concerns, but approximately 100 festivals still occur annually in western Turkey between November and March, with prize camels valued at over $20,000.

10. Shin Kicking Competitors Endure Brutal Leg Strikes in England's Cotswolds

Dating back to the 17th century as part of the Cotswold Olimpick Games, shin kicking involves two competitors grasping each other's shoulders while attempting to kick their opponent's shins until one player falls to the ground. Historically, competitors hardened their shins by hitting them with hammers and wore steel-toed boots, but modern rules (re-established in 1951) require soft shoes and allow participants to stuff straw down their trouser legs for protection. Matches are supervised by a "stickler" referee who ensures fair play, and bouts are decided in best-of-three rounds. The sport gained UNESCO recognition in 2021 as part of Britain's intangible cultural heritage, and the annual championship in Chipping Campden continues to draw competitors who willingly endure significant bruising for local glory.

Frequently Asked Questions

What is the most dangerous unusual sport still played today?

Cheese rolling at Cooper's Hill is considered among the most dangerous, with dozens of injuries including broken bones and concussions occurring almost every year. The 1:1 gradient slope and speeds reaching 70 mph make serious injury nearly inevitable, which is why professional emergency medical teams are stationed at the bottom during every event.

Are any bizarre sports recognized by international sporting organizations?

Yes, several unusual sports have gained official recognition—Sepak Takraw became an Asian Games sport in 1990, underwater hockey is governed by CMAS (the World Underwater Federation), and chess boxing has its own World Chess Boxing Organisation with standardized rules. These legitimized sports have official world championships, governing bodies, and international competition calendars.

How do people train for sports like chess boxing that require completely different skills?

Chess boxing athletes typically train separately for each discipline, spending mornings on physical conditioning and boxing technique, then afternoons on chess tactics and endurance (as mental fatigue increases dramatically during physical exertion). Top competitors usually have backgrounds in one discipline before adding the other, with chess players learning to box or boxers studying chess strategy.

Can anyone participate in these unusual sports or are they invitation-only?

Most bizarre sports welcome newcomers—cheese rolling, shin kicking, and wife carrying championships allow open registration, though some require basic safety waivers or minimum fitness levels. Sports like competitive chess boxing require demonstrable skill levels (such as the 1600 Elo rating minimum) to ensure participant safety and competition quality.

Key Takeaways

  • Many bizarre sports have ancient origins spanning centuries or millennia, from Turkish camel wrestling dating back 2,400 years to 17th-century shin kicking competitions in England's Cotswolds.
  • Several unusual sports have achieved official recognition with governing bodies, world championships, and standardized rules, particularly underwater hockey (36 countries), Sepak Takraw (Asian Games sport), and chess boxing (WCBO-sanctioned).
  • Safety concerns and injury rates vary dramatically—cheese rolling requires emergency medical teams for inevitable fractures, while sports like Bossaball incorporate safety features like inflatable courts and trampolines.
  • Unusual sports often blend seemingly incompatible activities (chess with boxing, ironing with extreme sports, volleyball with trampolines), creating unique athletic and strategic demands that attract dedicated followings worldwide.
The Place on Earth With the Highest Gravity

The Place on Earth With the Highest Gravity

⏱️ 5 min read

Gravity varies across the Earth's surface more than most people realize. While we often think of gravity as a constant force, subtle differences exist from one location to another due to variations in the planet's composition, topography, and rotation. The region with the highest gravitational pull on Earth is found in the Arctic Ocean near the coast of Greenland, where measurements have recorded gravity values approximately 0.5% higher than the global average.

Understanding Gravitational Variation on Earth

The acceleration due to gravity at Earth's surface averages approximately 9.8 meters per second squared, but this value fluctuates depending on several key factors. These variations, though seemingly small, have significant implications for satellite navigation, geophysical research, and our understanding of Earth's internal structure.

Gravity measurements are influenced by three primary factors: latitude, elevation, and local geological composition. The Earth is not a perfect sphere but an oblate spheroid, meaning it bulges at the equator and flattens at the poles. This shape, combined with the planet's rotation, creates measurable differences in gravitational acceleration across different locations.

The Arctic Gravity High

The region experiencing the strongest gravitational pull on Earth is located in the Arctic Ocean, specifically near the coast of Greenland and extending toward the Norwegian Sea. This area, identified through precise satellite measurements and gravimetric studies, exhibits gravitational acceleration values that exceed 9.83 meters per second squared in certain locations.

This gravitational anomaly results from a unique combination of factors. The region's proximity to the North Pole places it far from the equatorial bulge, where centrifugal force from Earth's rotation is greatest. Additionally, the area's geological composition includes dense crustal material and unique mantle characteristics that contribute to elevated gravity readings.

Satellite Measurements and Discovery

The identification of Earth's highest gravity zones became possible through advanced satellite technology, particularly missions like GRACE (Gravity Recovery and Climate Experiment) and GOCE (Gravity Field and Steady-State Ocean Circulation Explorer). These satellites mapped Earth's gravitational field with unprecedented precision, revealing subtle variations that ground-based measurements alone could not detect.

Factors Contributing to High Gravity in Polar Regions

Several interconnected factors explain why polar regions, particularly the Arctic, experience higher gravitational acceleration than other parts of the planet:

  • Reduced centrifugal force due to slower rotational velocity at high latitudes
  • Decreased distance from Earth's center of mass at the poles
  • Dense geological formations beneath the Arctic Ocean floor
  • Ice sheet mass and underlying bedrock composition
  • Mantle dynamics and convection patterns in the region

The Role of Earth's Shape and Rotation

Earth's rotation creates a centrifugal force that effectively reduces the net gravitational acceleration experienced at the surface. This effect is most pronounced at the equator, where rotational velocity reaches approximately 1,670 kilometers per hour. At the poles, rotational velocity drops to essentially zero, eliminating this counteracting force.

Furthermore, the equatorial bulge means that locations at the equator are approximately 21 kilometers farther from Earth's center than polar regions. Since gravitational force decreases with distance from the center of mass, this geometric factor alone accounts for a significant portion of the gravity difference between equatorial and polar regions.

Low Gravity Locations for Comparison

To appreciate the Arctic gravity high, it helps to understand where Earth experiences its lowest gravitational pull. The region with the weakest gravity is found at Huascarán, Peru, on the summit of Mount Huascarán. This location combines high elevation (6,768 meters above sea level) with proximity to the equator, where centrifugal force and distance from Earth's center both work to reduce gravitational acceleration.

The difference between the highest gravity in the Arctic and the lowest gravity in Peru amounts to approximately 0.7% of the average gravitational acceleration. While this may seem negligible, it represents a measurable difference that affects everything from ocean currents to satellite orbits.

Scientific and Practical Applications

Understanding gravitational variations across Earth's surface has numerous practical applications. Satellite navigation systems must account for these differences to maintain accuracy. GPS calculations, for instance, incorporate gravitational models to provide precise positioning information.

Geophysicists use gravity measurements to study Earth's interior structure, locate mineral deposits, and understand tectonic processes. Variations in gravity reveal information about crustal thickness, mantle composition, and the distribution of mass within the planet. Oil and gas exploration companies routinely employ gravimetric surveys to identify potential reservoirs.

Climate Research Implications

The Arctic's high gravity region has particular importance for climate research. The GRACE satellite mission monitored changes in Greenland's ice mass by detecting variations in local gravity. As ice melts and flows into the ocean, the mass distribution changes, creating measurable gravitational anomalies that scientists use to track ice loss rates and sea level contributions.

These measurements have revealed that Greenland loses approximately 280 billion tons of ice annually, data obtained largely through gravitational monitoring. The relationship between mass changes and gravity variations provides a powerful tool for understanding climate dynamics in this critical region.

Future Research and Monitoring

Ongoing satellite missions and improved ground-based gravimeters continue to refine our understanding of Earth's gravitational field. Next-generation satellites promise even more precise measurements, potentially revealing subtle temporal variations caused by groundwater depletion, post-glacial rebound, and other dynamic processes. The Arctic gravity high remains a focus of scientific interest, offering insights into both the planet's deep structure and surface changes affecting our climate system.