Science: quotes, facts and reflections - Page 10

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Follow the subject sideways.

Cards are connected by subject and by mood. Move through the complete sequence below, or cross into a neighbouring part of the archive.

87Drive

67Stillness

468Wonder

Q1102

WonderScience

There may be more historical artefacts on the ocean floor than in all the world’s museums, because shipwrecks and drowned sites accumulate for millennia.

Ships, cargo, tools, aircraft, settlements and ritual objects can end up underwater through trade, war, storms, sea-level change and accident. Exact totals are impossible, so the careful point is scale: underwater cultural heritage is enormous. This matters globally because human history does not stop at the shoreline. The lesson: memory is submerged as well as buried.

Ikigai DailyRead card

Q1103

WonderScience

The ocean holds about 97 percent of Earth’s water, yet only a small fraction of its depth has been directly explored.

The ocean dominates the planet’s water, climate and living space, but depth, darkness, pressure and cost make exploration difficult. Satellites see the surface; the deep requires ships, sonar, robots and time. This matters globally because the ocean affects weather, food, trade and carbon. The lesson: importance and familiarity are not the same thing.

Ikigai DailyRead card

Q1104

WonderScience

The Great Barrier Reef is the world's largest coral reef system, stretching over 2,300 km (1,400 miles) off Australia's coast.

Built by billions of tiny coral animals, it is often described as visible from space from low Earth orbit; the important fact is its vast scale and living coral structure.

Ikigai DailyRead card

Q1105

WonderScience

Most of the deep sea is near freezing and dark, yet it supports resilient life adapted to pressure, scarcity and cold.

Deep-sea animals and microbes cope with conditions that would crush or starve surface life. Some move slowly, some glow, some wait, and some gather around rare energy sources. This matters because life’s range is wider than comfort. The lesson: harsh places can still be habitats, not emptiness.

Ikigai DailyRead card

Q1106

WonderScience

Ocean tides are caused mainly by the Moon’s gravity pulling on Earth’s water as Earth rotates, with the Sun also contributing.

Tides are not simply water sloshing randomly. They come from gravitational differences across Earth, shaped by coastlines, ocean basins and the Sun’s pull. This matters globally for navigation, ecosystems, fishing, energy and coastal life. The lesson: the Moon is not just scenery; it moves the shore.

Ikigai DailyRead card

Q1108

WonderScience

Turritopsis dohrnii can revert to an earlier life stage under certain conditions, earning the careful nickname “immortal jellyfish.”

The animal can transform mature cells and return to a polyp-like stage, a remarkable biological reset. But it can still be eaten, damaged or die; “immortal” is a nickname, not a guarantee. This matters because regeneration research asks how flexible living tissue can be. The lesson: biology can bend time without defeating every risk.

Ikigai DailyRead card

Q1109

WonderScience

Sound travels about four times faster in water than in air, letting whale calls and underwater signals carry differently through the sea.

Water is denser and less compressible than air, so sound waves move through it more quickly. This matters for marine animals, submarines, sonar, divers and ocean research. The personal comparison is strange: the sea is visually dark at depth, but acoustically active. The lesson: every environment has its own way of carrying messages.

Ikigai DailyRead card

Q1138

WonderScience

And yet it moves.

The most famous words Galileo probably never said: “Eppur si muove” first appears in print in 1757, over a century after his 1633 trial, where legend claims he muttered it after being forced to recant that the Earth moves. No contemporary account records it. The legend survives because it compresses a truth: recantation extracted by force changes the man's words, not the planet's orbit.

Galileo GalileiRead card

Q1139

WonderScience

Measure what is measurable, and make measurable what is not so.

Not found in Galileo's writings: historians trace the slogan to later summaries of his method (the mathematician Hermann Weyl quoted it as a paraphrase in 1927). It compresses what Galileo genuinely did — timing balls on ramps with water clocks, turning quality into quantity. Modern science lives inside this sentence, whoever wrote it.

Galileo GalileiRead card

Q1140

StillnessScience

If I have seen further it is by standing on the shoulders of giants.

This comes from Newton's 1676 letter to Robert Hooke. In context, the famous 'shoulders of giants' image is about inherited knowledge, rivalry, humility, and the long chain of discovery. Isaac Newton (1643–1727) was an English physicist and mathematician whose laws of motion and gravity founded classical physics.

Isaac NewtonRead card

Q1141

StillnessScience

I can calculate the motion of heavenly bodies, but not the madness of people.

Attached to Isaac Newton by long tradition: after losing a fortune in the South Sea Bubble of 1720, he is said to have remarked that he could calculate the motions of heavenly bodies, but not the madness of people. The story surfaces decades later in anecdote collections, so historians treat it cautiously. True or polished, it records something real: Newton did lose about £20,000 — and markets still humble physicists.

Isaac NewtonRead card

Q1151

WonderScience

From so simple a beginning, endless forms most beautiful are being evolved.

This comes from Darwin's On the Origin of Species. The source context is not self-help but natural selection: survival depends on variation, pressure, and changing conditions. Charles Darwin (1809–1882) was an English naturalist whose theory of evolution by natural selection transformed our understanding of life.

Charles DarwinRead card

Q1154

WonderScience

If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.

Widely attributed to Tesla, but no lecture, article or interview containing it has ever been produced; it belongs to the modern Tesla mythos, where his real genius attracts mystical add-ons. His authentic work needs no embroidery: energy and frequency were precisely what he mastered — the rotating magnetic field, radio-frequency experiments, alternating current itself.

Nikola TeslaRead card

Q1173

StillnessScience

Nothing in life is to be feared, it is only to be understood.

Attributed to Marie Curie; the fuller version — “Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less” — circulates without a verified letter or lecture source. It matches her practice exactly: she kept working with radioactive material she did not yet know was killing her, convinced that understanding was the only road through fear.

Marie CurieRead card

Q1216

WonderScience

Somewhere, something incredible is waiting to be known.

A famous case of the profile outshining its subject: the sentence was written by journalist Sharon Begley in her 15 August 1977 Newsweek profile of Carl Sagan, describing his outlook — and later became “his” quote. Sagan would likely have signed it anyway: his Cosmos rests on exactly this faith, that the universe holds discoveries patiently waiting for whoever looks.

Carl SaganRead card

Q1217

WonderScience

We are a way for the cosmos to know itself.

This comes from Sagan's Cosmos world of science communication. The source context is cosmic perspective: wonder becomes a way to learn humility and responsibility. Carl Sagan (1934–1996) was an American astronomer and science communicator who brought the cosmos to millions through 'Cosmos'.

Carl SaganRead card

Q1218

WonderScience

I would rather have questions that can't be answered than answers that can't be questioned.

Widely attributed to Richard Feynman, but not found in his books, lectures or recorded talks. It matches his stance so well that the misattribution is understandable — he genuinely said he could live with doubt and uncertainty, and found it “much more interesting” than answers that might be wrong. Questions keep inquiry alive; unquestionable answers end it.

Richard FeynmanRead card

Q1219

StillnessScience

The first principle is that you must not fool yourself — and you are the easiest person to fool.

Verified Feynman: from “Cargo Cult Science”, his 1974 Caltech commencement address on scientific integrity. The full line — “The first principle is that you must not fool yourself, and you are the easiest person to fool” — introduces his demand that scientists report everything that might make their result wrong, not just what supports it. Self-deception, he argued, is the root failure all method exists to prevent.

Richard FeynmanRead card

Q1220

WonderScience

Look up at the stars and not down at your feet.

Verified Hawking: he gave this advice in a 2010 ABC News interview with Diane Sawyer and repeated it opening the 2012 London Paralympics — “Remember to look up at the stars and not down at your feet.” From a cosmologist who spent half a century almost unable to move his body, the sentence is not a platitude; it is a biography compressed to one line.

Stephen HawkingRead card

Q1223

StillnessScience

Only if we understand can we care. Only if we care will we help.

Goodall's often-stated chain of conservation logic, delivered in versions across her lectures and writing: understanding produces care, care produces help. It reverses the usual order of activism — she begins not with alarm but with intimacy. You protect, she argues, what you have truly come to know; ignorance, not malice, is nature's most common enemy.

Jane GoodallRead card

Q1250

WonderScience

Botanically, a banana is a berry because it develops from one flower’s ovary with seeds inside, while a strawberry is not a true berry.

Everyday food names follow taste, shopping and culture, not botanical categories. Botanists classify fruits by how they develop from flowers, which is why the familiar labels can flip. This matters because scientific language often cuts the world differently from ordinary speech. The lesson: names are useful, but definitions decide the category.

BotanyRead card

Q1251

WonderMind

Each time you recall a memory, the brain can update it slightly, so remembering is reconstruction rather than perfect playback.

A memory is not a video file stored unchanged. When it is retrieved, the brain may strengthen, weaken or blend details before storing it again. That makes memory precious and unstable at once: meaningful, useful, emotionally true — but not a camera.

Memory scienceRead card

Q1270

WonderHistory

Ancient Roman concrete has lasted 2,000 years, and modern research suggests it could actually heal its own cracks.

Studies of Roman harbour concrete found that lumps of lime let seawater trigger new mineral growth inside cracks, sealing them over time. Structures like the Pantheon still stand while much modern concrete crumbles in decades.

Materials science (MIT, 2023)Read card

Q1276

WonderScience

Hot water can freeze faster than cold under certain conditions — a puzzle known as the Mpemba effect.

Named after a Tanzanian student who noticed it while making ice cream, the effect is real but still debated. Evaporation, dissolved gases and convection currents may all play a part, and it does not happen every time.

PhysicsRead card