The universe is stranger than science fiction, and these 61 scientific facts will blow your mind. From the atoms in your body being older than the Earth to the fact that your brain makes up the entire experience of reality, these mind-bending discoveries will challenge your understanding of the world. Here are some of the most astonishing facts that will make you question everything you thought you knew.
- The definition of 'real' is a mere construct of the brain.
- Cooperation is the single greatest survival tactic in nature, and we are wired to be social.
- The stomach lining regenerates every few days to prevent digestion of organs.
- The sun accounts for 99.86% of the mass in the solar system.
- A 747 can fly around the Earth in 2 days, around the Sun in 6 months, and around the largest star in 1,200 years.
- Mushrooms are closer to animals than to plants.
- Pharmaceutical companies are not hiding the cure to cancer, and the cure will bring value to shareholders.
- Surgeons can operate on the brain while a patient is awake because the brain can't feel pain.
- The atoms in your body are older than the Earth, formed inside exploding stars billions of years ago.
- Every breath you take likely includes a molecule once exhaled by Julius Caesar.
- The metric our brain uses to tell our body to breathe is based on the amount of carbon dioxide, not oxygen.
- Nature has infinite resources to solve problems, and human solutions are specific.
- Atoms are 99.9999999% empty space, and the human race would fit inside a sugar cube.
- PET scans use antimatter to create detailed 3D maps of the body.
- The microbiome is the number of bacteria we carry on and within ourselves.
- The Earth is only about 20 galactic years old, and it has only completed 20 full orbits around the galaxy.
- The body's microbiome affects cravings for alcohol, and humans are 1:1 cell and microbe.
- The double-slit experiment shows that light can behave like particles or waves, depending on observation.
- Some algae species are more efficient at producing oxygen than trees.
- Spiders eat more biomass weight each year than all humans and whales combined.
- BMI is a joke, only applicable to average height younger white men.
- Deep hypothermic circulatory arrest can stop blood flow and maintain blood flow to the head.
- Lucid dreaming can be triggered by looking at hands or trying to read text.
- The planets can fit between the Earth and the Moon, with about 8000km of space leftover.
- A single asteroid caused the extinction of giant reptiles 186 million years ago.
- The spine compresses throughout the day, making you 1cm taller in the morning.
- Water has one of the highest heat capacities in chemistry and the highest heat of vaporization of most liquids.
- The Earth is nuclear-powered, and the core contains the majority of radioactive isotopes.
- The brain makes unconscious decisions up to 10 seconds before conscious awareness.
- Exoplanets were confirmed to exist after the author turned 12, and the world thought humans were the only life in the universe.
- The first hypothesis about climate change was proposed in 1824, and we have a hundred years before the food chain collapse.
- The surface area of human lungs is equivalent to a tennis court.
- Modern chip-making technology is incredibly advanced and expensive, with multiple companies involved in the process.
- The finite speed of light means you only see the past and can only affect the future.
- Advances in electronics and battery technology allow for animal tracking with transmitters, revealing their movements and knowledge of their surroundings.
- The eyes can send more data than the optic nerve can carry, and we don't know how they decide what data to send.
- Humans evolved to crave fatty foods as a survival strategy.
- Quantum entanglement is a spooky phenomenon where two particles instantly affect each other across space.
- The deep sea is surprisingly warm, around 40F, because that's the temperature at which water is densest.
- Before the Big Bang, time and space were jumbled together in a non-orientable surface.
- Ancient materials like Roman Concrete and True Damascus Steel cannot be exactly replicated due to lost knowledge and materials.
- The sun works through nuclear fusion, powered by quantum tunnelling.
- The universe is mostly hydrogen and helium, with everything heavier being leftover star material.
- The sun's scale is mind-boggling, and humans are 'decimal dust' in terms of mass.
- Only 5% of the stars in the galaxy could theoretically support life as we know it.
- The universe is 4D spacetime, and 'now' is not a universal slice shared by everyone.
- Vision continually gets worse despite better nutrition.
- Light always takes the fastest path to its destination, even if it's longer than a straight line.
- There are more trees on Earth than stars in the Milky Way.
- Black holes warp space and time, and the event horizon switches places between space and time.
- We are still in the stone age of understanding the human brain.
- The magnetic pole near the North Pole is actually a magnetic south pole.
- Mathematicians can memorize 1031-digit prime numbers.
- Our sensory systems convert light and sound into electricity and chemical reactions, making the world seem real.
- Certain colors like magenta don't exist in reality, as our brains interpret multiple wavelengths of light.
- Your entire life is almost two times less than one Neptunian year.
- There are more unique ways to shuffle a deck of cards than there are atoms in the Earth.
- Bell's Theorem shows that the universe cannot work the way we intuitively think it does, and particles can instantly communicate across the galaxy.
- Birds, mammals, reptiles, and amphibians are all tetrapod fish, and even have gills in early development.
- The brain creates the entire experience of reality, and we accept it as normal.
- An imaginary straight line connecting the crescent moon points south where it meets the horizon.
