OddlyFactoids

It would take about 2,439,696 people by making a human chain to reach across America. Which is roughly the population of Houston, Texas (with a population of around 2.3 million, but let's take this as an estimate for the sake of the analogy). It would take approximately 23,573,529 people holding hands with arms stretched to circle the Earth at the equator, which is about the population of Taiwan (with an estimated population of about 23.57 million). It would take approximately 226,117,647 people holding hands with arms stretched to reach from Earth to the Moon. This is about the population of Brazil (with an estimated population of around 216 million) and the city of Cairo (with a population of about 9.5 million) combined.

Christmas lights have a rich history that mirrors the evolution of technology and cultural practices over the centuries. Here are some interesting facts about them. Before electric lights, candles were used to decorate Christmas trees. This practice dates back to 17th-century Germany, where trees were adorned with lit candles to symbolize the light of Christ. However, this was incredibly hazardous; fires were common, and many places banned the practice for safety reasons. The first known use of electric lights for Christmas was in 1882 when Edward H. Johnson, an associate of Thomas Edison, hand-wired 80 red, white, and blue light bulbs and wound them around his Christmas tree in New York City. This was just four years after Edison invented the incandescent light bulb. Although Johnson's lights were a novelty, they were not immediately popular due to their cost and complexity. It wasn't until 1917 that Albert Sadacca, a teenager at the time, started selling safer, more accessible light sets. His idea was inspired by a tragic tree fire, leading his family's novelty lighting company to pivot to Christmas lights. This marked the beginning of widespread commercialization. In the 1940s, an innovation came in the form of "bubble lights." These were liquid-filled bulbs that bubbled when heated by the bulb's filament, adding a unique visual effect to Christmas decorations. They became very popular in the 1950s. The introduction of miniature lights in the late 1960s and early 1970s made decorations lighter and easier to use. However, the real game-changer came with LED lights. Introduced in the 2000s, LEDs are energy-efficient, long-lasting, and can be produced in a variety of colors without needing different colored glass or coatings, unlike older incandescent bulbs. Over time, Christmas lights have transcended their religious origins to become a symbol of festivity, community, and joy across different cultures. From individual homes to entire neighborhoods, cities, and even countries like the UK with its famous Trafalgar Square tree, Christmas lights have become a communal activity that brings people together. The shift to LED lights has also been driven by environmental concerns. LEDs use significantly less energy, last longer, and don't contain hazardous materials like mercury, making the holiday season a bit greener. These facts highlight how Christmas lights have evolved from simple candlelight to complex, energy-efficient systems, reflecting both technological advancements and changes in societal values regarding safety, aesthetics, and environmental impact.

Today in 1882, the first string of electric lights decorating a Christmas tree was created for his home by Edward H. Johnson, an associate of Thomas Edison

Chameleons change color through a combination of physiological and biological processes. They have specialized cells called chromatophores in their skin. These cells contain pigments and are responsible for color change. There are three main types of chromatophores: Xanthophores: Contain yellow and red pigments. Irridophores: Reflective cells that create blue and white colors by manipulating light. Melanophores: Contain melanin, which produces black and brown colors. When a chameleon wants to change color, it can disperse or concentrate the pigments within the chromatophores. For instance, if melanophores spread out their melanin, the chameleon will appear darker. The color we see is determined by which layers of chromatophores are active. If iridophores (blue) are on top and melanophores (black) below are spread out, you'll see a blue-black color. Emotional states like stress, fear, or aggression can trigger color changes. For example, a chameleon might turn dark when it's angry or bright when it's excited. Colder temperatures might make them darker to absorb more heat, while warmer conditions might lead to lighter colors to reflect heat. Camouflage is not the primary reason for color change in chameleons as popularly believed, but they can adjust their colors to match their surroundings to some extent for thermoregulation or communication. Color change plays a significant role in communication, especially during mating, where males display vibrant colors to attract females or to challenge other males. The brain sends signals to the chromatophores via the nervous system to control color changes. This process can be rapid or gradual depending on the need.

@Rainmaker1973 Tranformers was first released in 1984. First generation Optimus Prime In mint, sealed condition, can go for upwards of $40,000 for very rare variants like the Canadian release.

Moray eels often have a symbiotic relationship with cleaner fish like the bluestreak cleaner wrasse. The eel will open its mouth wide to allow the wrasse to clean parasites and dead tissue from its mouth and gills, providing a cleaning service that benefits both species. Unlike most fish, moray eels have a second set of pharyngeal jaws located in their throat. Once prey is within reach, these jaws can extend forward to grab and pull the prey further into the eel's digestive tract, a feature reminiscent of the 'Alien' movie creature. Moray eels have an exceptional sense of smell, which they use to locate prey hidden in crevices or buried in sand. Their nostrils are quite sensitive, allowing them to detect chemical cues in the water. Many species of moray eels are masters of camouflage. Their skin can mimic the patterns and colors of the surrounding reef or rock, providing excellent camouflage against predators and when hunting. Moray eels are covered with a thick layer of mucus, which helps protect their skin from abrasion in the coral and rock environments they inhabit. Unlike many fish, moray eels lack pectoral fins. Instead, they use their strong, muscular bodies to undulate through crevices and along the reef, making them adept at navigating tight spaces. While many species are solitary, some moray eels, like the giant moray, have been observed hunting in partnership with other fish, notably the grouper. This cooperative hunting takes advantage of the moray's ability to flush prey out of hiding places, which the grouper can then catch. Some species of moray eels can live for several decades in the wild, with lifespans potentially reaching over 30 years. Moray eels vary significantly in size. The smallest species might only reach about 12 inches, while the largest, like the giant moray, can grow to over 8 feet long. Little is known about the reproductive behavior of moray eels in the wild due to their secretive nature. However, it's understood that they lay eggs, which hatch into leptocephalus larvae, tiny, transparent creatures that drift in the ocean currents before metamorphosing into juvenile eels.

@Rainmaker1973 Tattoos have been around for thousands of years. Ötzi the Iceman, a mummy found in the Alps, dating back to 3300 BC, had over 60 tattoos on his body.

UV tatoos [📹 inkmaster]

@Rainmaker1973 Tattoos have been around for thousands of years. Ötzi the Iceman, a mummy found in the Alps, dating back to 3300 BC, had over 60 tattoos on his body.

Lovetattoo Warszawa is renowned for crafting distinctive tattoo designs, with a special emphasis on themes involving parents and their children. [🎞️ lovetattoo__warszawa] x.com/i/status/18125…

The Christmas log cake, also known as Bûche de Noël, has some fascinating origins and traditions. The Bûche de Noël dates back to the 19th century in France, but its roots are even older. It symbolizes the yule log that was traditionally burned in hearths during the winter solstice to celebrate the return of the sun. The cake replicates this log's appearance, with bark-like icing and sometimes even "moss" made from chopped nuts or sugar. Initially, the cake was more rustic, often just a simple sponge cake rolled with jam or cream. Over time, it evolved into an elaborate dessert with chocolate buttercream or ganache to mimic bark, and decorations like meringue mushrooms, marzipan berries, or even little figurines to represent forest scenes. While it's most commonly associated with France, variations of the Christmas log cake exist in many countries. In Belgium, it's known as Kerststronk, in Spain as Tronco de Navidad, and in Italy as Ceppo di Natale. Each culture adds its own twist, sometimes incorporating local flavors or shapes. Making a Bûche de Noël has become an art form. Pastry chefs often compete or showcase their skills in creating not just delicious but visually stunning cakes. Some logs are designed to look like they are burning, complete with "smoke" made from spun sugar or meringue. Today, you can find Bûche de Noël in various flavors beyond the traditional chocolate, including coffee, chestnut, raspberry, and even exotic options like matcha or mango. There are also vegan, gluten-free, and other dietary-specific versions, broadening its appeal. Beyond its taste, the cake serves as a reminder of communal gatherings, the warmth of the home, and the continuity of traditions. In some families, the process of making or decorating the cake is a cherished activity, bringing generations together in the holiday spirit.

A Christmas log cake house. [🎞️ ifonly. ai]

Reef squids (Sepioteuthis lessoniana) are renowned for their ability to change color rapidly. They use this not only for camouflage but also for communication. They can display a variety of patterns and colors through chromatophores, iridophores, and leucophores in their skin, signaling mood, aggression, or mating readiness. Like many cephalopods, reef squids are quite intelligent. They have demonstrated problem-solving skills in lab settings, can learn from experience, and are capable of observing and mimicking behaviors of other squids. They are social creatures, often found in groups. Reef squids engage in complex social interactions, including courtship displays, where males will perform elaborate color changes and postures to attract females. They also have a social hierarchy where larger males dominate. For quick escapes, reef squids use jet propulsion. By rapidly expelling water from their mantle cavity, they can shoot away from predators at high speeds. This is one of the fastest acceleration methods in the animal kingdom. Reef squids have an interesting reproductive strategy; males transfer sperm to females via a specialized arm called the hectocotylus. Females then lay eggs, which they often guard until they hatch. While they can be active during the day, they are primarily nocturnal hunters. They feed on small fish and crustaceans, using their tentacles to capture prey with great precision. Their lifespan is relatively short; most reef squids live for only about 6 to 9 months, reaching sexual maturity within just a few months of hatching.

Reef squid can shift between opaque and transparent in an instant.

The African giant snail, scientifically known as Achatina fulica, can grow to an impressive size, with some reaching lengths of up to 20 cm (8 inches) or even more. Their shell can weigh over 1 kg (2.2 lbs). These snails are hermaphrodites, meaning each individual has both male and female reproductive organs. However, they still need to mate with another snail to reproduce. A single mating can lead to over 1,000 eggs in a year, making them extremely prolific. Under ideal conditions, an African giant snail can live up to 9 years, which is quite long for a snail. They are voracious eaters, consuming over 500 types of plants. This includes both living plants and decaying matter, making them both a pest and a beneficial decomposer. They've been known to eat paint and stucco off walls due to the calcium content, which they need for their shells. Originally from East Africa, they have been introduced to many parts of the world where they've become significant agricultural pests. In some places, they've been intentionally introduced for snail farming but have often escaped or been released, leading to ecological issues. In areas where they've become invasive, various methods are used to control their population, including biological control with species like the rosy wolf snail (Euglandina rosea). However, introducing predators has sometimes led to further ecological imbalances. In some cultures, the African giant snail is considered a delicacy. In others, they're used in traditional medicine. However, they can also carry parasites like rat lungworm, which can be harmful if eaten undercooked or raw. Their ability to reproduce rapidly makes them a significant threat to biodiversity, as they can outcompete native snails and other invertebrates for resources. Their mucus has properties that have led to research in fields like pharmacology, where it's being studied for potential medical applications due to its healing and antimicrobial qualities.

67P has a unique "rubber duck" shape due to its two distinct lobes, which might suggest that it could be a contact binary (two comets that have gently collided and stuck together). The larger lobe is called the "body," and the smaller one is the "head." In 2014, the Rosetta spacecraft became the first to orbit a comet when it rendezvoused with 67P. This mission provided unprecedented up-close observations of a comet's nucleus, its activity, and its interaction with solar wind as it approached the Sun. In November 2014, Rosetta deployed the Philae lander, which became the first spacecraft to land on a comet. However, Philae's initial landing was not as planned; it bounced several times before finally coming to rest in a shadowy area where it couldn't recharge its solar batteries, limiting its active life on the comet. The comet's surface has been found to be very rugged with cliffs, boulders, and deep pits. Some pits are thought to be sinkholes where the subsurface ice sublimated directly into gas, leaving voids that collapsed. Scientists discovered a rich array of organic (carbon-containing) compounds on 67P, including glycine, the simplest amino acid, hinting at the potential role comets might have played in seeding life's building blocks on Earth. Observations from Rosetta indicated that the water on 67P has a different isotopic composition compared to Earth's water, suggesting that comets like 67P might not be the primary source of Earth's oceans. As 67P gets closer to the Sun, its activity increases with jets of gas and dust being ejected. These outbursts are caused by the heating of ice into vapor, which can dramatically alter the comet's appearance and behavior. 67P orbits the Sun once every 6.44 years, classified as a Jupiter-family comet because its orbit is influenced by Jupiter. Its last perihelion (closest approach to the Sun) was in August 2021, and the next will be in November 2027. Like all comets, 67P develops a visible coma (a cloud around the nucleus) and a tail as it nears the Sun. The dust and gas tails can extend for millions of kilometers.

Chongqing is known for being one of the most populous urban areas in the world. With an urban population of over 30 million in the metropolitan area, it's often referred to as one of the mega-cities of China. Chongqing is massive in terms of its administrative area - it's about the size of Austria. This makes it the largest city in China by area, with diverse landscapes ranging from mountains to rivers. Chongqing is famously known as the "Fog City" due to its heavy fog, especially in the winter months. The city's name in Chinese, "Chongqing," actually means "double celebration," but humorously, locals sometimes say it should mean "double fog."

@Rainmaker1973 Tic-Tac-Toe has ancient origins, with versions of the game found in ancient Egypt, Rome, and among the Vikings. It was known as "Terni Lapilli" by the Romans.

Tic tac toe upgrade

Bears do communicate with each other using a variety of methods. Bears use different sounds like grunts, moans, roars, and huffs to express various emotions or intentions. For example, a mother bear might use specific vocalizations to communicate with her cubs. Bears communicate a lot through their posture, movements, and facial expressions. Ears laid back can signify aggression, while standing on hind legs might be used to get a better view or to appear more threatening. Bears have a strong sense of smell and use scent marking to communicate territorial boundaries or reproductive status. They use glands in their feet or by rubbing against trees. Bears also use visual signals like showing their teeth or bluff charging to warn off competitors or threats. Cubs and their mothers use touch for communication, like nudging or licking, to maintain social bonds or direct behavior. This communication is essential for survival, helping with everything from mating to avoiding fights to teaching cubs about the environment. Each species of bear might have slightly different methods or nuances in how they communicate, but the basic principles are similar across species.

What do you suppose they are talking about?

Not True Crabs: Despite their name, horseshoe crabs are not true crabs. They are more closely related to spiders, scorpions, and ticks. The long, pointed tail isn't used for stinging but for flipping the crab back over if it gets turned upside down. Horseshoe crab blood is blue due to the presence of copper-based hemocyanin, rather than the iron-based hemoglobin found in most other creatures. This blood contains a unique substance called Limulus Amebocyte Lysate (LAL), which is crucial for detecting bacterial endotoxins in medical applications.

Fun fact. In 450 million years, horseshoecrabs have hardly changed.

Chameleons don't have to learn how to change their color. Watch this newborn one doing it immediately after hatching. [📹 Eli Ralston]

Optimus Prime [📹 fisciencias]

If it swims in the Sea and cuddles you like a Puppy, that's a Moray!

African giant snails eating [📹 insecthaus_adi]

The view from the surface of a Comet, an alien landscape captured by the Rosetta spacecraft during its visit to Comet 67P. 📽: ESA/Rosetta/Jacint Roger Perez

Chongqing, China