Ikigai DailyThe examined world
Experiments, discoveries and scale-shifting facts about matter, life and the universe.
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Q0486The Hubble Space Telescope, launched in 1990, sees the universe without atmosphere blurring the view. A light-year is about 9.5 trillion kilometres (5.9 trillion miles), so light from the most distant galaxies is also ancient: looking far away means looking billions of years into the past.
Q0488All digital data — text, images, music — is ultimately just ones and zeros. Binary code is the simple alphabet from which every file and app is built.
Q0489When your phone streams a film, syncs photos or asks an online service a question, much of the work happens in distant data centres. Cloud computing matters because it lets individuals and companies rent scale instead of owning every machine themselves. It also creates dependence on networks, electricity and trust. The cloud is not weightless; it is someone else's computer made reachable.
Q0490The first optical telescope appeared in the Netherlands around 1608. Galileo improved it and turned it skyward — and what he saw ended the idea that Earth sat at the centre.
Q0493Fuel and air burn inside cylinders. The expanding gas pushes pistons, the pistons turn a crankshaft, and that rotation can move a vehicle or machine. This design reshaped transport, cities and climate because millions of engines made mobility cheap while also emitting pollution. The lesson is that useful motion can carry hidden costs.
Q0506From an interview with Einstein. Knowledge maps what we already know, he argues, but imagination reaches past it — the spark that lets science and art discover the new.
Q0526From an 1854 address by Louis Pasteur. Discovery, he observed, rewards the prepared: chance favours those whose knowledge and attention are ready to seize it.
Q0540Galileo was not jailed but placed under house arrest in 1633 for defending heliocentrism against the Church — spending his last years confined, yet still working and writing.
Q0549Completed in 2003, the Human Genome Project produced the first full read of human DNA — a shared reference map that transformed biology, medicine and our sense of ourselves.
Q0562The Latin root of 'science' means 'to know' — the same root behind 'conscious', 'omniscient' and 'conscience'. A family of words all circling the act of knowing.
Q0565Both Voyager probes have now crossed into interstellar space, beyond the Sun's bubble of particles — the farthest human-made objects, still faintly phoning home.
Q0568Einstein won the 1921 Nobel Prize not for relativity but for the photoelectric effect — the work that revealed light's particle side and later shaped solar panels and cameras.
Q0569Marie Curie won Nobel Prizes in two sciences — Physics (1903) and Chemistry (1911) — the first person ever to do so, and still one of very few.
Q0571The Voyager probes launched in 1977, but the first web server didn't run until 1990 — a spacecraft was already leaving the planets before the web was even born.
Q0573On Earth a day is far shorter than a year, but that's not universal: on Venus a day outlasts its year, a reminder that our everyday sense of time is a local habit.
Q0574During the First World War Marie Curie built mobile X-ray units, driving them to the front herself so surgeons could find bullets and shrapnel — her science put directly to saving lives.
Q0575In 1905, his 'miracle year', Einstein published papers that reshaped physics — all while working as a clerk in a Swiss patent office, doing science in his spare time.
Q0583Neuroplasticity means the nervous system can change its activity, structure and connections with experience — the biological basis of learning, recovery and lifelong change.
Q0584Practice is not idle repetition; each attempt gives the nervous system feedback to refine the skill — which is why deliberate, focused practice beats mindless drilling.
Q0611Leonardo's notebooks are less like tidy papers and more like a working laboratory on the page: muscle studies, flying machines, war devices, plant observations and painting problems sit side by side. For him, drawing was not just a way to record the world; it was a method for understanding it.
Q0621National Geographic notes the Great Pyramid was the tallest human-made structure on Earth for nearly 4,000 years — a record no building broke until the modern age.
Q0627Voyager launched in 1977, long before the first web server in 1990 — so a probe was leaving the Solar System before the web that now spans Earth even existed.
Q0636Focus is not separate from the body carrying it. Poor sleep, dehydration, hunger and stillness can all make thinking feel heavier. This matters globally because people often moralise fatigue instead of supporting the conditions for clear thought. The so-what: before blaming yourself, check the basics that keep a brain online.
Q0640Everyday words carry old worlds inside them: 'disaster' hides a bad star, 'quarantine' forty days, 'robot' forced labour — language as a museum you speak without noticing.