Science: quotes, facts and reflections - Page 5

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Q0411

WonderTechnology

The Apollo Guidance Computer flew astronauts to the Moon with about 4 KB of working memory — your phone has roughly a million times more.

The AGC had about 4 KB of RAM, 72 KB of fixed 'rope core' memory, and ran at roughly 1 MHz — less computing power than a musical greeting card. Yet in 1969 it steered Apollo 11 across 380,000 km, ran the landing radar, and even recovered gracefully from overload alarms minutes before touchdown. The story is not about weak hardware; it is about what disciplined engineering, compact code and ruthless prioritising can do under impossible constraints.

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Q0412

WonderTechnology

Quantum behaviour can appear in engineered electrical circuits large enough to be physical devices, not only in isolated particles.

Superconducting circuits can behave as quantum systems when cooled and isolated carefully enough. This is one route towards quantum computers, where fragile effects must be protected from everyday noise. The so-what is modern: quantum physics is not only a strange theory of tiny things; it is becoming hardware people can build.

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Q0415

WonderTechnology

The Antikythera mechanism was an ancient Greek device that could predict astronomical cycles.

The Antikythera mechanism, a corroded bronze device from around 100 BC, could predict eclipses and planetary positions — an analogue computer two millennia early.

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Q0429

WonderScience

Nearly every cell carries the same DNA, but a skin cell, liver cell and neuron become different by using different parts of that shared script.

Your body is not built from thousands of separate instruction books. Most cells carry the same basic DNA, then switch different genes on or off for their job. This matters anywhere because it explains growth, healing, disease and modern medicine. A life can change without rewriting the whole script; sometimes the key is which part gets read.

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Q0430

WonderTechnology

CRISPR began as a bacterial defence system; in the laboratory, it became a way to cut and change DNA with remarkable precision.

The discovery matters because it changed the scale and speed of genetic research. CRISPR is used to study disease, improve crops and explore therapies that once belonged mostly to speculation. Its power also brings hard questions: which edits should be allowed, who benefits, and where medicine ends and redesign begins.

Nobel Prize / CRISPR researchRead card

Q0436

WonderScience

Vaccination began with smallpox — and smallpox became the first human disease we ever eradicated.

Vaccination began in 1796 when Edward Jenner used cowpox to protect against smallpox. Nearly two centuries later, in 1980, the World Health Organization declared smallpox eradicated — the first, and still only, human disease wiped out. The win came not from vaccines alone but from relentless surveillance: finding each case, tracing contacts and vaccinating in a ring around every outbreak.

Ikigai DailyRead card

Q0440

WonderScience

The discovery of DNA's double helix in 1953 transformed biology and medicine.

In 1953 Watson and Crick, building on Rosalind Franklin's images, revealed DNA's double helix — the structure that showed how life copies and passes on its instructions.

Ikigai DailyRead card

Q0452

WonderTechnology

Fibre optic cables send data as pulses of light through glass strands, carrying calls, videos and money across continents and oceans.

A message can leave your phone, pass through cables under streets and seas, and arrive as light-guided data far away. Fibre optics matter because they give the internet enormous capacity without needing signals to crawl through copper alone. The global lesson is hidden infrastructure: the cloud still needs a physical world underneath it.

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Q0455

WonderTechnology

The laser was first demonstrated in 1960 and is now used in surgery, manufacturing, data storage, and global fibre communication.

First demonstrated in 1960, the laser was famously 'a solution looking for a problem' — now it cuts steel, reads discs, performs surgery and carries the internet's light.

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Q0461

WonderTechnology

Open-source software allows anyone to read, modify, and freely distribute code. It underpins much of the modern internet's core infrastructure.

Open-source software lets anyone read, change and share the code freely. Much of the internet's foundation is built this way — a global commons written by volunteers.

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Q0462

WonderTechnology

Machine learning lets systems improve at a task from examples instead of being given every rule by hand.

Traditional programming tells a computer exact steps. Machine learning often gives the system many examples, then lets it find useful patterns for prediction or classification. That matters globally in translation, medicine, finance, search and everyday recommendations. The so-what is practical: better tools still need careful goals, good data and human judgement.

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Q0463

WonderTechnology

The transistor is one of the most produced objects in human history. Modern chips can hold tens of billions on a surface smaller than a fingernail.

The transistor may be the most-manufactured object ever: a single modern chip holds billions, and the world makes more transistors each year than grains of rice or stars we can see.

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Q0464

WonderTechnology

MRI scanners use strong magnetic fields and radio waves to make detailed soft-tissue images without cutting the body open.

An MRI can show brain, muscle, joints and organs in detail because it reads signals from atoms inside the body. For a patient, the personal comparison is simple: it turns hidden tissue into a map on a screen. Globally, it changed diagnosis by making many internal problems visible earlier and more safely. Seeing well can prevent guessing badly.

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Q0465

WonderTechnology

Nuclear power plants generate electricity by controlled fission: splitting heavy atoms to release heat, boil water and turn turbines.

In a reactor, controlled fission releases heat. That heat makes steam, steam spins a turbine, and the turbine produces electricity, much like other power stations. The difference is the fuel's density and the safety responsibility around it. The global lesson is trade-off: powerful energy systems can lower some risks while demanding serious control of others.

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Q0468

WonderScience

Alexander Fleming's discovery of penicillin in 1928 led to the world's first widely used antibiotic, transforming modern medicine.

In 1928 Alexander Fleming noticed mould killing bacteria in a dish he'd left out — the accident that led to penicillin and the antibiotic age that has saved countless lives.

Alexander Fleming, 1928Read card

Q0469

WonderScience

Wilhelm Röntgen discovered X-rays in 1895 and was awarded the first Nobel Prize in Physics in 1901.

Röntgen discovered X-rays in 1895, letting doctors see bones without cutting — a breakthrough so important it earned the very first Nobel Prize in Physics in 1901.

Wilhelm Röntgen, 1895Read card

Q0473

WonderTechnology

Encryption protects digital data by converting it into a form readable only with the correct key. Without it, secure communication over the internet would be impossible.

Encryption scrambles data so only someone with the right key can read it — the invisible lock behind online banking, private messages and much of modern trust.

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Q0474

WonderTechnology

Quantum computers use qubits that can be prepared in superpositions, giving them different strengths from ordinary bits for certain problems.

A normal bit is read as 0 or 1. A qubit can be prepared and manipulated using quantum states before measurement gives an outcome. That does not make quantum computers automatically faster at everything, but it could matter for chemistry, materials and some optimisation problems. The lesson is precision: new power often comes with narrow, demanding conditions.

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Q0476

WonderTechnology

The internet has no single owner; it works because shared protocols let many independent networks speak to one another.

Your message may cross several companies, cables, routers and countries before it arrives. The internet keeps working because networks agree on common technical rules for addressing and moving data. That global cooperation is easy to miss when an app feels instant. The so-what: open standards can create more power than one central owner.

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Q0477

WonderTechnology

DNA data storage could theoretically pack enormous amounts of digital information into tiny biological molecules, but it is still experimental.

DNA stores life's instructions in a compact chemical code, so researchers are exploring whether digital files can be written into similar molecules. The promise is density and long-term storage; the challenge is cost, speed and reliability. For now, your phone's memory is practical in a way DNA storage is not. The lesson is that possibility and readiness are different things.

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Q0478

WonderTechnology

Sputnik, the first artificial satellite, was launched by the Soviet Union on 4 October 1957, shocking the Western world and igniting the Space Race.

On 4 October 1957 the Soviet Union launched Sputnik, the first artificial satellite — a beeping metal sphere that stunned the world and set off the Space Race.

Soviet Union, 1957Read card

Q0479

WonderTechnology

3D printing, or additive manufacturing, builds physical objects layer by layer from digital design files, enabling rapid prototyping and custom manufacturing.

3D printing builds objects layer by layer from a digital design — making everything from prototypes to prosthetics, and letting a shape exist as a file before it exists as a thing.

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Q0483

WonderTechnology

A single optical fibre thinner than a human hair can carry huge volumes of calls, video and data as pulses of light.

Optical fibre works because light can be guided through glass with very little loss. One strand can carry many channels at once, turning a thin physical line into a massive communication path. This matters globally because finance, hospitals, schools, families and governments all depend on fast links. The small cable under the street may be holding a large part of your day together.

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Q0484

WonderTechnology

The World Wide Web and the internet are not the same. The internet is the global network infrastructure; the web is one service that runs on it.

The internet and the web are not the same: the internet is the global network of connected computers; the web is one thing that runs on it — pages linked by hyperlinks.

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