--- title: "Meaning & Key Takeaway of: When young Galileo, then a student at…" description: "\"When young Galileo, then a student at Pisa, noticed one day during divine service a chandelier swinging backwards and forwards, and convinced himself, ..." image: "https://sms4smile.com/quotes/i/f8c/hermann-von-helmholtz-18314_accuracy_when-young-galileo-then-a-student-at-pis_1432350.jpg" --- # When young Galileo, then a student at Pisa, noticed one… ![“When young Galileo, then a student at Pisa, noticed one day during divine service a chandelier swinging backwards and forwards, and convinced himself, by counting his pulse, that the duration of the oscillations was independent of the arc through which it moved, who could know that this discovery…” quote by Hermann von Helmholtz](https://sms4smile.com/quotes/i/f8c/hermann-von-helmholtz-18314_accuracy_when-young-galileo-then-a-student-at-pis_1432350.jpg) [Download](https://sms4smile.com/quotes/i/f8c/hermann-von-helmholtz-18314_accuracy_when-young-galileo-then-a-student-at-pis_1432350.jpg) [Open image](https://sms4smile.com/quotes/i/f8c/hermann-von-helmholtz-18314_accuracy_when-young-galileo-then-a-student-at-pis_1432350.jpg) > “When young Galileo, then a student at Pisa, noticed one day during divine service a chandelier swinging backwards and forwards, and convinced himself, by counting his pulse, that the duration of the oscillations was independent of the arc through which it moved, who could know that this discovery would eventually put it in our power, by means of the pendulum, to attain an accuracy in the measurement of time till then deemed impossible, and would enable the storm-tossed seaman in the most distant oceans to determine in what degree of longitude he was sailing?” [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. The observation that a pendulum’s swing period is constant regardless of swing size led to precise timekeeping, which in turn allowed sailors to determine longitude at sea. **In simple terms:** Pendulum swings have constant timing, enabling accurate clocks and navigation. Key Takeaway Use consistent timing to improve measurement and navigation. Themes science navigation measurement innovation Mood inquisitive reflective optimistic Type historical scientific educational When to use this quote - maritime navigation - clock making - physics education - historical experiments Key Concepts pendulum physics timekeeping longitude determination Questions to Reflect On - How did accurate timekeeping change global trade? - What other natural phenomena have been used for measurement? A Different Perspective Reliance on pendulum clocks still faced temperature and friction errors. ★ ★ ★ ★ ★ No ratings yet [Accuracy](https://sms4smile.com/quotes/about/accuracy/) [Arcs](https://sms4smile.com/quotes/about/arcs/) [Backwards](https://sms4smile.com/quotes/about/backwards/) [Chandeliers](https://sms4smile.com/quotes/about/chandeliers/) [Church](https://sms4smile.com/quotes/about/church/) [Convinced](https://sms4smile.com/quotes/about/convinced/) [Counting](https://sms4smile.com/quotes/about/counting/) [Degrees](https://sms4smile.com/quotes/about/degrees/) [Determine](https://sms4smile.com/quotes/about/determine/) [Discovery](https://sms4smile.com/quotes/about/discovery/) [Divine](https://sms4smile.com/quotes/about/divine/) [Duration](https://sms4smile.com/quotes/about/duration/) [Galileo](https://sms4smile.com/quotes/about/galileo/) [Galileo Student](https://sms4smile.com/quotes/about/galileo-student-5103255/) [Impossible](https://sms4smile.com/quotes/about/impossible/) [Independent](https://sms4smile.com/quotes/about/independent/) [Knows](https://sms4smile.com/quotes/about/knows/) [Longitude](https://sms4smile.com/quotes/about/longitude/) [Longitude Sailing](https://sms4smile.com/quotes/about/longitude-sailing-5103256/) [Mean](https://sms4smile.com/quotes/about/mean/) [Measurement](https://sms4smile.com/quotes/about/measurement/) [Moved](https://sms4smile.com/quotes/about/moved/) [Ocean](https://sms4smile.com/quotes/about/ocean/) [One day](https://sms4smile.com/quotes/about/one-day/) [Oscillation](https://sms4smile.com/quotes/about/oscillation/) [Pendulums](https://sms4smile.com/quotes/about/pendulums/) [Pisa](https://sms4smile.com/quotes/about/pisa/) [Pulse](https://sms4smile.com/quotes/about/pulse/) [Sailing](https://sms4smile.com/quotes/about/sailing/) [Science](https://sms4smile.com/quotes/about/science/) [Seamen](https://sms4smile.com/quotes/about/seamen/) [Storm](https://sms4smile.com/quotes/about/storm/) [Students](https://sms4smile.com/quotes/about/students/) [Time](https://sms4smile.com/quotes/about/time/) [Young](https://sms4smile.com/quotes/about/young/) [Young Galileo](https://sms4smile.com/quotes/about/young-galileo-5103257/) ## Related quotes > [(Jace) "Is there anything special you want to see? 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Macaulay](https://sms4smile.com/quotes/author/thomas-b-macaulay/) > [Some princes, so as to hold securely the state, have disarmed their subjects, others have kept their subject towns distracted by factions...Our forefathers, and…](https://sms4smile.com/quotes/niccolo-machiavelli/some-princes-so-as-to-hold-securely-the-state-have-disarmed-their/) [Niccolo Machiavelli](https://sms4smile.com/quotes/author/niccolo-machiavelli/) > [I sometimes think about the tower at Pisa as the first particle accelerator, a (nearly) vertical linear accelerator that Galileo used in his studies.](https://sms4smile.com/quotes/leon-m-lederman/i-sometimes-think-about-the-tower-at-pisa-as-the-first-particle/) [Leon M. Lederman](https://sms4smile.com/quotes/author/leon-m-lederman/) > [Education is more than Pisa. Particularly musical education. We also need education and training for more than reasons of usefulness and marketability.](https://sms4smile.com/quotes/johannes-rau/education-is-more-than-pisa-particularly-musical-education-we-also/) [Johannes Rau](https://sms4smile.com/quotes/author/johannes-rau/) > [“In 2000, a German researcher named Andreas Schleicher developed the Program for International Student Assessment test (PISA) to help nations determine whether their teenagers…](https://sms4smile.com/quotes/julie-lythcott-haims/in-2000-a-german-researcher-named-andreas-schleicher-developed-the/) [Julie Lythcott-Haims](https://sms4smile.com/quotes/author/julie-lythcott-haims/) > [I am with you. I'm not going anywhere." "Is there anything special you want to see? Paris? Budapest? The Leaning Tower of Pisa?" Only…](https://sms4smile.com/quotes/cassandra-clare/i-am-with-you-i-m-not-going-anywhere-is-there-anything-special-you/) [Cassandra Clare](https://sms4smile.com/quotes/author/cassandra-clare/) > [“Economists had found an almost one-to-one match between PISA scores and a nation's long term economic growth. Many other things influenced economic growth, of…](https://sms4smile.com/quotes/amanda-ripley/economists-had-found-an-almost-one-to-one-match-between-pisa-scores/) [Amanda Ripley](https://sms4smile.com/quotes/author/amanda-ripley/) > [I've been to the Leaning Tower of Pisa. It's a tower, and it's leaning. You look at it, but nothing happens, so then you…](https://sms4smile.com/quotes/danny-devito/i-ve-been-to-the-leaning-tower-of-pisa-it-s-a-tower-and-it-s-leaning/) [Danny DeVito](https://sms4smile.com/quotes/author/danny-devito/) > [The Anti-Vivisector does not deny that physiologists must make experiments and even take chances with new methods. He says that they must not seek…](https://sms4smile.com/quotes/george-bernard-shaw/the-anti-vivisector-does-not-deny-that-physiologists-must-make/) [George Bernard Shaw](https://sms4smile.com/quotes/author/george-bernard-shaw/) > [“Here’s how Andreas Schleicher, who directs those PISA tests, puts it: “The best way to find out whether what students have learned at school…](https://sms4smile.com/quotes/m-night-shyamalan/here-s-how-andreas-schleicher-who-directs-those-pisa-tests-puts-it/) [M. Night Shyamalan](https://sms4smile.com/quotes/author/m-night-shyamalan/) ## More by Hermann von Helmholtz > [During the first half of the present century we had an Alexander von Humboldt, who was able to scan the scientific knowledge of his…](https://sms4smile.com/quotes/hermann-von-helmholtz/during-the-first-half-of-the-present-century-we-had-an-alexander-von/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [“I have been able to solve a few problems of mathematical physics on which the greatest mathematicians since Euler have struggled in vain ...…](https://sms4smile.com/quotes/hermann-von-helmholtz/i-have-been-able-to-solve-a-few-problems-of-mathematical-physics-on/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [The originator of a new concept...finds, as a rule, that it is much more difficult to find out why other people do not understand…](https://sms4smile.com/quotes/hermann-von-helmholtz/the-originator-of-a-new-concept-finds-as-a-rule-that-it-is-much-more/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [There is a kind, I might almost say, of artistic satisfaction, when we are able to survey the enormous wealth of Nature as a…](https://sms4smile.com/quotes/hermann-von-helmholtz/there-is-a-kind-i-might-almost-say-of-artistic-satisfaction-when-we/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [The law in question asserts, that the quantity of force which can be brought into action in the whole of Nature is unchangeable, and…](https://sms4smile.com/quotes/hermann-von-helmholtz/the-law-in-question-asserts-that-the-quantity-of-force-which-can-be/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [What we see is the solution to a computational problem, our brains compute the most likely causes from the photon absorptions within our eyes.](https://sms4smile.com/quotes/hermann-von-helmholtz/what-we-see-is-the-solution-to-a-computational-problem-our-brains/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [A raised weight can produce work, but in doing so it must necessarily sink from its height, and, when it has fallen as deep…](https://sms4smile.com/quotes/hermann-von-helmholtz/a-raised-weight-can-produce-work-but-in-doing-so-it-must-necessarily/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [The smallest quantity of alcohol scares away novel ideas.](https://sms4smile.com/quotes/hermann-von-helmholtz/the-smallest-quantity-of-alcohol-scares-away-novel-ideas/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [I think the facts leave no doubt that the very mightiest among the chemical forces are of electric origin. The atoms cling to their…](https://sms4smile.com/quotes/hermann-von-helmholtz/i-think-the-facts-leave-no-doubt-that-the-very-mightiest-among-the/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [A moving body whose motion was not retarded by any resisting force would continue to move to all eternity.](https://sms4smile.com/quotes/hermann-von-helmholtz/a-moving-body-whose-motion-was-not-retarded-by-any-resisting-force/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [But heat can also be produced by the friction of liquids, in which there could be no question of changes in structure, or of…](https://sms4smile.com/quotes/hermann-von-helmholtz/but-heat-can-also-be-produced-by-the-friction-of-liquids-in-which/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [Windmills, which are used in the great plains of Holland and North Germany to supply the want of falling water, afford another instance of…](https://sms4smile.com/quotes/hermann-von-helmholtz/windmills-which-are-used-in-the-great-plains-of-holland-and-north/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [Each individual fact, taken by itself, can indeed arouse our curiosity or our astonishment, or be useful to us in its practical applications.](https://sms4smile.com/quotes/hermann-von-helmholtz/each-individual-fact-taken-by-itself-can-indeed-arouse-our-curiosity/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [A metaphysical conclusion is either a false conclusion or a concealed experimental conclusion.](https://sms4smile.com/quotes/hermann-von-helmholtz/a-metaphysical-conclusion-is-either-a-false-conclusion-or-a-concealed/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) > [Reason we call that faculty innate in us of discovering laws and applying them with thought.](https://sms4smile.com/quotes/hermann-von-helmholtz/reason-we-call-that-faculty-innate-in-us-of-discovering-laws-and/) [Hermann von Helmholtz](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) [Explore all 35 Hermann von Helmholtz quotes ](https://sms4smile.com/quotes/author/hermann-von-helmholtz/) ## More Accuracy quotes > [Talented people can predict with great accuracy what's about to happen just a tiny bit ahead of their competitors. 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Accuracy of description in language is not possible…](https://sms4smile.com/quotes/northrop-frye/the-only-thing-that-words-can-do-with-any-real-precision-or-accuracy/) [Northrop Frye](https://sms4smile.com/quotes/author/northrop-frye/) > [Am I accurately reporting what I see in such a blossom? The answer is no ... and yes.](https://sms4smile.com/quotes/allen-lacy/am-i-accurately-reporting-what-i-see-in-such-a-blossom-the-answer-is/) [Allen Lacy](https://sms4smile.com/quotes/author/allen-lacy/) > [Only by being suspended aloft, by dangling my mind in the heavens and mingling my rare thought with the ethereal air, could I ever…](https://sms4smile.com/quotes/aristophanes/only-by-being-suspended-aloft-by-dangling-my-mind-in-the-heavens-and/) [Aristophanes](https://sms4smile.com/quotes/author/aristophanes/) > [Without much accuracy, with strangely little love at all, your family will decide for you exactly who you are, and they'll keep nudging, coaxing,…](https://sms4smile.com/quotes/allan-gurganus/without-much-accuracy-with-strangely-little-love-at-all-your-family/) [Allan Gurganus](https://sms4smile.com/quotes/author/allan-gurganus/) > [The federal government is starting to plan for climate change by making extended forecasts that can help people plan for extreme weather - because…](https://sms4smile.com/quotes/jimmy-fallon/the-federal-government-is-starting-to-plan-for-climate-change-by/) [Jimmy Fallon](https://sms4smile.com/quotes/author/jimmy-fallon/) > [Nobody sees reality whole; we all need others to show us the parts of it that they see better than we do. 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