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Built and published by Mohit Jaswal — June 2026 — Because knowledge should never cost money.
26 letters. Every English word ever written uses some combination of these:
5 vowels: A, E, I, O, U — these are the sounds you can hold. Try saying "AAAA" or "EEEE." Your mouth stays open.
21 consonants: Everything else. These are the sounds that stop or change the airflow. Try saying "B" or "T." Your lips or tongue block the air.
Every word is built from vowels + consonants together. CAT = C(consonant) + A(vowel) + T(consonant).
Phonics: Letters make sounds. Some letters together make new sounds:
Every sentence is built from 8 types of words:
| Type | What It Does | Examples |
|---|---|---|
| Noun | Names a person, place, thing, or idea | dog, city, love, Tuesday |
| Verb | Shows action or state of being | run, think, is, become |
| Adjective | Describes a noun | big, red, beautiful, three |
| Adverb | Describes a verb, adjective, or another adverb | quickly, very, often, here |
| Pronoun | Replaces a noun | he, she, it, they, we |
| Preposition | Shows position or relationship | in, on, under, between, after |
| Conjunction | Connects words or sentences | and, but, or, because, while |
| Interjection | Expresses emotion | wow, ouch, hey, oh |
Every complete sentence needs at minimum: a subject (who or what) and a predicate (what they do).
Every essay, report, or argument follows the same skeleton:
Aristotle identified three ways to persuade people 2,300 years ago. They still work:
Every advertisement, political speech, court argument, and social media post uses some combination of these three. Once you see them, you cannot unsee them.
Every number ever written uses these 10 digits. The position of the digit tells you its value:
This is the base-10 (decimal) system. Computers use base-2 (binary): just 0 and 1. The number 372 in binary is 101110100.
| Operation | Symbol | What It Means | Example |
|---|---|---|---|
| Addition | + | Combining amounts | 3 + 5 = 8 |
| Subtraction | - | Taking away | 8 - 3 = 5 |
| Multiplication | x | Repeated addition | 4 x 3 = 12 (four groups of three) |
| Division | / | Splitting into equal groups | 12 / 4 = 3 (twelve split into four groups) |
These are three ways of saying the same thing:
A fraction is a part of a whole. The bottom number (denominator) tells you how many equal pieces. The top number (numerator) tells you how many pieces you have.
Algebra uses letters to represent unknown numbers. The goal: find what the letter equals.
The golden rule: whatever you do to one side of the equals sign, you must do to the other side.
Functions: A function takes an input and gives exactly one output. f(x) = 2x + 1 means: whatever x is, double it and add 1.
Trigonometry: The study of triangles. Three ratios define every right triangle:
Calculus preview: Calculus answers two questions: (1) How fast is something changing right now? (derivative) (2) How much total has accumulated? (integral). These two operations are inverses of each other. That single insight (the Fundamental Theorem of Calculus) is one of the most powerful ideas in human history.
Science is a method, not a subject. It is how you figure out what is true:
The key: a real scientist TRIES to prove themselves wrong. If your experiment can only confirm what you already believe, it is not science. It is confirmation bias.
Everything you can touch is made of atoms. How those atoms behave creates three states:
All living things share these traits:
Every living thing is made of cells. Some organisms are one cell (bacteria). You are made of ~37 trillion cells.
Two types: prokaryotic (no nucleus, simpler: bacteria and archaea) and eukaryotic (has a nucleus with DNA inside: animals, plants, fungi, you).
Key parts: nucleus (contains DNA instructions), mitochondria (power generators), cell membrane (outer wall), ribosomes (protein builders).
DNA is a molecule shaped like a twisted ladder (double helix). The rungs of the ladder are made of four chemical bases: A (adenine), T (thymine), C (cytosine), G (guanine). A always pairs with T. C always pairs with G.
The ORDER of these letters is the code. Just like the order of letters in English makes different words, the order of A-T-C-G makes different genes. You have about 20,000-25,000 genes. They are the instructions for building you.
Every cell in your body contains a complete copy of your DNA. A skin cell and a brain cell have the same DNA but read different sections, like opening the same book to different chapters.
Evolution is change over generations. It works through natural selection: organisms with traits that help them survive and reproduce pass those traits to their offspring. Over millions of years, small changes accumulate into large differences. This is how one species becomes many.
All life on Earth shares a common ancestor. You share 60% of your DNA with a banana. 96% with a chimpanzee. 85% with a mouse. Life is one family tree.
| Domain | Type | Examples | Key Fact |
|---|---|---|---|
| Bacteria | Prokaryotic (no nucleus) | E. coli, Streptococcus, cyanobacteria | Most numerous organisms on Earth. Many are helpful. |
| Archaea | Prokaryotic (no nucleus) | Methanogens, thermophiles, halophiles | Look like bacteria but genetically closer to YOU. Live in extreme environments. Discovered 1977. |
| Eukarya | Eukaryotic (has nucleus) | Animals, plants, fungi, protists, YOU | Everything you can see with your eyes is in this one domain. |
| System | Function | What They Teach | What Research Shows |
|---|---|---|---|
| Circulatory | Blood transport | Heart pumps blood through vessels | Blood moves in spirals. Heart creates vortex. Vessel walls generate charge that drives flow. |
| Nervous | Communication | Brain sends electrical signals | Brain may BE an electromagnetic field (CEMI theory). Gut has 500M neurons, makes 95% of serotonin. |
| Skeletal | Support | Bones hold you up | Bones are piezoelectric crystals that generate electricity, make all blood, store immune memory. |
| Respiratory | Breathing | Inhale O2, exhale CO2 | Nose is electrostatic filter + NO factory + brain hemisphere controller. Air carries electrical charge. |
| Digestive | Food processing | Stomach breaks down food | Gut is a second brain with 500M neurons. Enzymes use quantum tunneling. |
| Immune | Defense | White blood cells fight infection | Memory T cells live in bone marrow. Your bones remember diseases from childhood. |
| Sensory | Perception | Eyes see, ears hear | Eyes detect single photons. Ears use piezoelectric proteins. Nose may use quantum tunneling for smell. |
Everything in the universe is made of atoms. An atom has three parts:
The number of protons defines what element it is. 1 proton = hydrogen. 6 protons = carbon. 79 protons = gold. There are 118 known elements.
The periodic table organizes all elements by their number of protons (atomic number). Elements in the same column behave similarly because they have the same number of electrons in their outer shell.
The most important elements for life: hydrogen (H), carbon (C), nitrogen (N), oxygen (O), phosphorus (P), sulfur (S). Remember: CHNOPS.
A reaction rearranges atoms into new combinations. Nothing is created or destroyed (conservation of mass). The total atoms before = total atoms after.
Four fundamental forces run everything in the universe:
| Force | What It Does | Range | Relative Strength |
|---|---|---|---|
| Gravity | Attracts objects with mass to each other | Infinite | 1 (weakest) |
| Electromagnetic | Holds atoms together, creates light, electricity, magnetism | Infinite | 10^36 (much stronger than gravity) |
| Strong nuclear | Holds protons and neutrons together in the nucleus | Tiny (inside nucleus only) | 10^38 (strongest) |
| Weak nuclear | Causes radioactive decay, powers the sun | Tiny | 10^25 |
Gravity is the weakest force. A tiny refrigerator magnet overcomes the gravitational pull of the entire planet Earth when it holds a paperclip.
Energy cannot be created or destroyed, only converted between forms:
Einstein showed that mass IS energy: E = mc2. A tiny amount of mass = an enormous amount of energy (because c, the speed of light, is 300,000,000 m/s, and you square it).
At the atomic scale, the rules change. Particles can be in two places at once (superposition). They can pass through solid barriers (tunneling). Measuring a particle changes what it does (observer effect). Two particles can be connected across any distance (entanglement).
This is not science fiction. Every transistor in your phone uses quantum mechanics. Photosynthesis uses quantum coherence. Your nose may use quantum tunneling to identify smells.
| When | What | Why It Matters |
|---|---|---|
| ~300,000 years ago | Modern humans appear in Africa | We are all from the same place |
| ~12,000 years ago | Agriculture begins (Fertile Crescent) | People stop moving, start building |
| ~11,600 years ago | Gobekli Tepe built (Turkey) | Monumental architecture before farming was established |
| ~5,300 years ago | Writing invented (Sumer, Iraq) | Knowledge can survive beyond one lifetime |
| ~5,000 years ago | Pyramids of Giza built | Engineering that still cannot be fully explained |
| ~4,500 years ago | Indus Valley cities (Harappa, Mohenjo-Daro) | Indoor plumbing, grid streets, no monarchy, 5M people |
| ~2,500 years ago | Golden age of philosophy (Greece, India, China simultaneously) | Socrates, Buddha, Confucius alive within 100 years of each other |
| ~2,000 years ago | Roman Empire at peak | Roads, law, engineering across three continents |
| ~1,400 years ago | Islamic Golden Age begins | Algebra invented, Greek texts preserved, House of Wisdom |
| ~500 years ago | European colonization begins | Reshaped the world. Still shaping it. |
| ~250 years ago | Industrial Revolution | Machines replace human labor. Everything accelerates. |
| ~80 years ago | Nuclear weapons + computers | Power to destroy everything. Power to know everything. |
| ~30 years ago | Internet goes public | All human knowledge accessible. All human behavior trackable. |
Six major knowledge repositories were deliberately destroyed across 2,500 years: Library of Alexandria (48 BCE), Qin Shi Huang's book burning (213 BCE), Nalanda University (1193 CE, 9 million manuscripts burned for 3 months), Imperial Library of Constantinople (1204 CE), House of Wisdom Baghdad (1258 CE, river ran black with ink), Maya Codices (1562 CE, only 4 survive).
Full details: What Was Erased
Earth is the third planet from the Sun. 71% water, 29% land. 8 billion humans. One moon. Tilted 23.5 degrees (this tilt creates seasons).
7 continents: Africa, Antarctica, Asia, Australia/Oceania, Europe, North America, South America.
5 oceans: Pacific (largest), Atlantic, Indian, Southern, Arctic (smallest).
Crust (5-35 km thick, what we walk on) > Mantle (2,900 km, hot rock that flows slowly) > Outer core (2,260 km, liquid iron) > Inner core (1,220 km radius, solid crystallized iron, size of the Moon).
The deepest humans have ever drilled: 12.26 km (Kola Superdeep Borehole, Russia). That is 0.2% of the distance to the core. Everything deeper is inferred from earthquake waves.
| Type | Who Rules | Examples |
|---|---|---|
| Democracy | The people (through voting) | Canada, India, France |
| Republic | Elected representatives | USA, Germany |
| Monarchy | King or Queen (inherited) | UK, Saudi Arabia, Jordan |
| Dictatorship | One person, absolute power | North Korea |
| Oligarchy | A small group of wealthy/powerful people | Historically: Rome, Venice |
| Theocracy | Religious leaders | Iran, Vatican City |
In most democracies: someone proposes a bill > it is debated > it is voted on > if passed, the head of state signs it into law. In practice: lobbyists (people paid by corporations) write many of the bills. Campaign donations influence which politicians get elected. The person who votes and the person who writes the law are often not the same person.
Formal power (governments, elected officials) operates alongside informal power (corporations, financial institutions, intelligence agencies, media). Full map: The Full Tree and The Global Power Map.
Money is not backed by gold anymore (since 1971, Nixon). Modern money is created when banks make loans. When a bank lends you $100,000 for a house, it does not take that money from someone else's savings. It creates it. The money exists because the loan exists. This is called fractional reserve banking.
Central banks (Federal Reserve, Bank of Canada, Bank of England) control how much money exists by setting interest rates. Higher rates = less borrowing = less money created. Lower rates = more borrowing = more money created.
Every dollar in existence was created as debt. Someone borrowed it into existence. For the system to work, the economy must grow forever (to generate enough income to pay the interest on all the debt). This is why "growth" is treated as sacred in economics. Without growth, the debt cannot be serviced.
The Bank for International Settlements (BIS) in Basel, Switzerland coordinates central banks worldwide. It is immune from all national laws. Its assets cannot be seized "in peace or war." Full details: The Full Tree.
Computers only understand two things: ON (1) and OFF (0). Every photo, song, game, and website is built from billions of 1s and 0s.
A program is a list of instructions written in a language the computer understands. Every program uses these building blocks:
Your computer sends a request through your router > to your ISP > through undersea cables > to a server somewhere in the world > the server sends back the webpage > through the same path in reverse. This happens in milliseconds. 99% of internet traffic travels through physical undersea fiber optic cables, not satellites.
An algorithm is a step-by-step procedure for solving a problem. A data structure is how you organize information so the algorithm can work efficiently.
Simple example: finding a name in a phone book. Flip through one page at a time (slow, linear search) or open to the middle, check if your name comes before or after, then repeat with the correct half (fast, binary search). Same problem, different algorithm, vastly different speed.
Engineers solve problems by building things. Different types:
Buildings, bridges, roads, water systems, cities
Machines, engines, robotics, manufacturing
Circuits, power systems, electronics, signals
Materials, fuels, pharmaceuticals, food processing
Apps, websites, AI, databases, operating systems
Aircraft, spacecraft, satellites, propulsion
Medical devices, prosthetics, imaging, drug delivery
Water treatment, pollution control, renewable energy
Your immune system has layers:
Diagnose (figure out what is wrong), treat (fix it or manage it), prevent (stop it from happening). Medicine uses drugs, surgery, rehabilitation, and lifestyle changes.
Specializations: cardiology (heart), neurology (brain/nerves), oncology (cancer), orthopedics (bones/joints), pediatrics (children), psychiatry (mental health), surgery, emergency medicine, and many more.
For most of human history, medicine meant plants. Ayurveda (India, 5,000 years), Traditional Chinese Medicine (3,000 years), Greek herbal medicine (Hippocrates, Galen). Modern pharmaceutical medicine became dominant after the Flexner Report (1910) redirected medical school funding toward patentable synthetic drugs. Full history: What Was Erased.
| Planet | Type | Key Fact |
|---|---|---|
| Mercury | Rocky | Closest to Sun, no atmosphere, extreme temperatures |
| Venus | Rocky | Hottest planet (462C), thick CO2 atmosphere, rains sulfuric acid |
| Earth | Rocky | Only known planet with liquid water and life |
| Mars | Rocky | Has ice caps, thin atmosphere, humans plan to visit |
| Jupiter | Gas giant | Largest planet, 79+ moons, Great Red Spot storm for 350+ years |
| Saturn | Gas giant | Famous rings (ice and rock), 146+ moons |
| Uranus | Ice giant | Tilted 98 degrees (rolls on its side), 27 moons |
| Neptune | Ice giant | Fastest winds in solar system (2,100 km/h), 16 moons |
Light travels at 300,000 km per second. A light-year is the distance light travels in one year: about 9.46 trillion km. The nearest star to our Sun (Proxima Centauri) is 4.24 light-years away. The light you see from it left 4.24 years ago. Looking at stars is literally looking back in time.
Before writing existed, humans painted on cave walls (oldest known: 45,500 years ago in Indonesia). Art is older than agriculture, older than cities, older than writing. It is one of the first things humans did after learning to survive. That tells you something about what it means to be human.
Music is organized sound. It has four main elements:
There are 12 notes in Western music: C, C#, D, D#, E, F, F#, G, G#, A, A#, B. Then it repeats. Every song ever written in Western music uses some combination of these 12 notes.
Seven principles guide all visual art: balance, contrast, emphasis, movement, pattern, rhythm, unity. Understanding these lets you read any painting, photograph, building, or design and understand why it works (or why it does not).
Everything above is in most curricula. The sections below are things that are documented, published, and peer-reviewed, but rarely appear in textbooks.
Nature Communications 2016. The fundamental quantum limit of light detection. Your eyes are quantum instruments.
Wolff's Law, 1892. Piezoelectric collagen generates electricity from pressure, signaling where to add bone.
100x stronger magnetically than your brain. Detectable 3 feet away. Entrains all body rhythms.
University of Bristol, Science 2013. Electrical field changes broadcast whether pollen is available.
Mycorrhizal fungal networks, 400+ million years old. Mother trees detect and feed sick neighbors.
Schumann Resonance. Falls at the theta-alpha brainwave crossover. Tesla discovered it in 1899.
Solid crystallized iron, nearly Moon-sized. Carbon allowed it to freeze. The magnetic field it generates protects all life.
Howard University 2025. Tryptophan networks act as quantum fiber optics. Billions of times faster than chemistry.
The worst killed 96% of marine species. Life recovered every time. The 6th is happening now, caused by us.
GRAS loophole (1958). The food industry approves its own additives. 10,000+ in US food. EU bans 2,000+.
Alexandria, Nalanda, House of Wisdom, Maya Codices. Then the medicine was defunded. Then the farming was replaced.
Banks create money when they lend. The system requires infinite growth to service infinite debt.
The full research behind each of these: What Was Erased