Daylight Savings Time has been shown to increase the rate of heart attacks (AMI’s) by 24% the morning of the time change. Scientists think this is due to the change in our sleep cycle. Conversely, when the time switches back, the study showed a 21% decrease in AMI’s that day. openheart.bmj.com/content…
Today I learned of Marco Pantani. Considered one of the best cyclists of all time, his resting heart rate was 34bpm, and could drop to even more dangerous levels in sleep. So dangerous he would need to wake up at night and cycle just to raise his heart rate to a safe level. youtu.be/hT8GZlBBv5k
The climate of the Sahara alternates between desert and savanna, in cycles that last 20 thousand years. About 6 thousand years ago, it was lush grassland instead of desert. en.wikipedia.org/wiki/Sah…
Oak trees produce bumper amounts of acorns in roughly 5 year cycles. Squirrels will bury many more than they can actually eat increasing the chance of a new oak growing. youtu.be/DPCL9kj7_bU
According to the Hindu Theory of World Cycles, the Universe is billions of years old; Earth is struck by a global catastrophe every few million years; and an advanced civilisation, in which people were happier, taller, and lived much longer than today, was wiped out about 4 million years ago. baharna.com/karma/yuga.ht…
To suppress the pest population, scientists genetically engineered male Diamondback Moths and released them into the wild so that they would mate with females, giving off female offspring which would die during the caterpillar life stage, while the male offspring survive and repeats the cycle. sciencemag.org/news/2020/…
Unspayed female cats go into heat every 2-3 weeks, but the heat cycle itself can sometimes last up to 2 weeks, giving the appearance of the cat always being in heat. bgshelterpets.com/more-ab…
The word "Honeymoon” has origins that date back to the 5th century, when cultures represented calendar time with moon cycles. Back then, a newlywed couple drank mead (the β€œhoney”) during their first moon of marriage. mentalfloss.com/article/5…
How extreme isolation warps the mind ["in darkness most people eventually adjust to a 48-hour cycle: 36 hours of activity followed by 12 hours of sleep. The reasons are still unclear."] bbc.com/future/story/2014…
Stephen King's 1983 novella "Cycle of the Werewolf" began life as a werewolf-themed calendar which King was commissioned to write 12 vignettes for to pair with each month's illustrations. en.wikipedia.org/wiki/Cyc…
The Aztecs believed our current world was the fifth in a series of creation cycles, and the previous four worlds were destroyed in a variety of ways from flooding to raining flames. According to the Aztecs, the world we currently live in will be destroyed by earthquakes en.wikipedia.org/wiki/Fiv…
A resort in Madagascar wanted the sun to rise and set later, so they created their own time zone, an hour ahead of the rest of Madagascar. According to the hotel, "A time peculiar to the lodge was created so that we are better adjusted to the natural cycles of the reserve and the village." npr.org/sections/goatsand…
Females lions are receptive to mating for three or four days within a widely variable reproductive cycle. During this time a pair generally mates every 20–30 minutes, with up to 50 copulations per 24 hours. britannica.com/animal/lio…
Microwave power settings don't actually adjust the power levels. The magnetron simply turns on and off in cycles to allow heat to be radiated throughout the food. en.wikipedia.org/wiki/Mic…
In 2011, near Syracuse, N.Y., a man riding bareheaded in an anti-helmet law rally lost control of his cycle, went over his handlebars, hit his head on the pavement and died. A state troopers said he motorcyclist likely would have survived the accident if he'd been wearing a helmet. cbc.ca/news/world/motorcy…
The American boardgame "Chutes and Ladders" is a bastardization of an ancient Indian game called Moksha Patam. The game's original theming represented the Hindu soul's arduous path to liberation from the cycle of reincarnation and has been played by the same ruleset for nearly 2,000 years. en.wikipedia.org/wiki/Sna…
Your nose only breathes using one nostril at a time, and that the nostril in use switches every few hours. This "nasal cycle" is dictated by the same system that regulates heart rate and other unconscious bodily functions and is the reason why only one nostril gets stuffy at a time. mentalfloss.com/article/3…
Today I learned during certain moon cycles you can see the moon set. star-www.st-and.ac.uk/~fv…
The lifespan of blue whales is estimated by their earwax, which builds up in seasonal cycles somewhat like the rings of a tree. en.wikipedia.org/wiki/Blu…
Captive Giant Pandas were shown a video of pandas mating in the wild, in an effort to get them to mate in the female's 3-day breeding cycle. When "Yongyong" tried to mount "Ke Lin", she fought him off; but after Ke Lin viewed the "panda pornography," the pair mated successfully. telegraph.co.uk/news/worl…
There's a jellyfish that undergoes a process called transdifferentiation. Instead of dying, they can reverse its life cycle, earning the name the Immortal Jellyfish - the only known animal to do this. youtu.be/9z8ujpPgUjI?t=63
Today I learned about Salps - a jellyfish relative. They asexually reproduce chains of clones who are all female, which then detach and breed sexually. After giving birth to a single asexual offspring they become male, while the offspring starts the cycle over. rnz.co.nz/national/progra…
There's been proposals to terraform Venus for a human colony since the 1960's, such as thinning the dense atmosphere to reduce the 450 Β°C surface temperature, setting up a system of orbital mirrors to give it Earth-like day/night cycle, and colliding it with an ice moon to fill it with water. wiki2.org/en/Terraforming…
Your voice can change during different phases of the menstrual cycle due to the link between hormone levels and vocal cord functions. ncbi.nlm.nih.gov/pmc/arti…
One of the first functional digital home computers was the Digi-Comp I from 1963. It was entirely mechanical and used no electricity. It could output 3 binary digits and programmers used thin wires to set up primitive logic. With no power, the user had to pull a lever to perform each CPU cycle. en.wikipedia.org/wiki/Dig…
Researchers historically have avoided using female animals in medical studies specifically so they don't have to account for influences from hormonal cycles. This may explain why women often don't respond to available medications or treatments in the same way as men do medicalxpress.com/news/20…
Today I learned of the "Hinoe uma" which is a part of the Sexagenary Cycle in Japan. Occurring every 60 years, people born on this year tend to have a strong personality, which in 1966 led to a drop of 1/3 in births. seiyaku.com/reference/hin…
Today I learned about Conformal Cyclic Cosmology, a modern cosmological model that says the universe iterates through infinite cycles with one universe's infinite expansion eventually giving rise to the next universe's Big Bang singularity. en.wikipedia.org/wiki/Con…
For several hundred thousand years, the Sahara has alternated between desert and savanna grassland in a 20,000 year cycle. The area is next expected to become green in about 15,000 years, in 17,000 AD. en.wikipedia.org/wiki/Sah…
That spiders can regrow limbs assuming they have at least one molt cycle left in their life time. The limb starts smaller then its other limbs but can grow bigger, until normal size, after each molt. This can however come at a cost of the overall size of the spider. nrcresearchpress.com/doi/…
Han Zhijun has been described as "China's most mysterious first lady". Han never accompanied Chairman Hua on business trips abroad and the two rarely appeared in public together. Reportedly, Han continued to cycle to and from work en.wikipedia.org/wiki/Han…
Humans are among a small hand full of species to menstruate including apes, monkeys, bats, and a type of shrew. Animals with an estrous cycle (they go into heat) can soak up the unused endometrium. youtu.be/cjbgZwgdY7Q
Cyclists move fater when they cycle together with others. Interestingly, cockroaches move faster in the presence of others as well. (Triplett, 1897; Zajonc, 1969) en.wikipedia.org/wiki/Soc…
Today I learned about Solar Maximum cycles and the Carrington Event. A solar storm that hit Earth powerful enough to start fires and cause sparks from telegraph wires. The aurora was seen as close to the equator as South America and Northern Australia. The next Solar cycle is predicted to start this year. history.com/news/a-perfec…
The Guinness World Record for the highest CPU clock rate is an overclocked, 8.723 GHz AMD Piledriver-based FX-8370 chip. That's 8.7 billion cycles a second. w.wiki/JQu
The First Person to Cycle Around the Globe, Thomas Stevens, did it on a Penny Farthing, Between 1884 and 1886, Packing only Socks, a Spare Shirt, a Revolver, and a Raincoat. en.wikipedia.org/wiki/Tho…
Every eclipse belongs to a family of identical eclipses, separated by 18 years, 11 days, 8 hours. There are 40 active eclipse families (saros cycles). en.wikipedia.org/wiki/Sar…
Long periods of isolation without sunlight creates 'time-shifting' effects on the mind to the point of sleep-wake cycles being doubled. bbc.com/future/article/20…
Ancient Greek historian Polybius came up with a cyclical theory of government (anacyclosis), where governments start off as monarchies, the final stage is ochlocracy, when a democracy degenerates into chaos and mob-rule. Then the cycle resets itself. gainweightjournal.com/11-…
Pregnancy is counted from the first day of the last period. So if you were to conceive in the week before your period, you’d already be approx. 3 weeks pregnant (assuming a 4 week menstrual cycle)! betterhealth.vic.gov.au/h…
There are about 1,500 species of cicadas known. There are those that appear yearly in midsummer, and there are also the so-called "periodic" cicadas. They appear at prime number intervals - 7 years, 13 years and 17 years. Once every 221 years, the 13-year cycle and 17-year cycle cicadas overlap. abc.net.au/science/articl…
Solar activity varies with an 11-year cycle. At solar minimum, the Sun often appears nearly featureless, completely free of sunspots. At maximum, however, there can be hundreds of sunspots arranged in a half dozen or more groups skyandtelescope.org/obser…
The longest film ever released is 2012's "Logistics", a documentary, filmed in real time, follows the production cycle of a pedometer in reverse chronological order from end sales back to its origin and manufacture. It clocks in at 857 hours--over 35 days. en.wikipedia.org/wiki/Log…
A cat in heat can have multiple eggs, and they can be released over several days of her cycle. If Tabby has chosen more than one Tom during her heat cycle, it's possible she'll be carrying kittens from multiple fathers. catster.com/cat-health-ca…
Your body automatically stuffs and un-stuffs alternating nostrils so you only use one nostril at a time. This is called the "nasal cycle." mentalfloss.com/article/3…
Today I learned of Maria Sibylla Merian, the naturalist who discovered the life cycle of butterflies and insects, painted them in breathtakingly accurate watercolors, and braved the jungles of Africa with her daughter to greatly advance the science of entomology. theconversation.com/hidde…
China has a 60-year (Sexagenary) cycle on top of its 12-year (Zodiac) cycle, with 2020 being the start of a cursed "Branch". 1900- middle of the Boxer Rebellion (~100,000 casualties) and 1960 - middle of the Great Chinese Famine (with casualties ranging from 15 to 45 million) en.wikipedia.org/wiki/Sex…
A moth species has evolved to live in sloth fur. The moths use sloth dung to incubate their eggs and when they hatch, the moths fly back into a sloth's fur, completing the cycle. When the moths die, their corpses fertilize moss growing in the sloth's fur, which provide camouflage and...nutrition independent.co.uk/news/sc…
Today I learned about the Passenger Pigeon de-extinction project intended to restore flocks of Passenger Pigeons to the eastern U.S., in-turn restoring a consistent and significant disturbance factor to stimulate cycles of regeneration, making forests more productive and diverse. reviverestore.org/about-t…
There is a massive subterranean biosphere estimated to contain life approaching double the volume of all oceans. About 70% of Earth's bacteria and archaea live here. These microbes are often very different from surface cousins, with life cycles on near-geologic timescales. deepcarbon.net/life-deep-…

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