--- title: "Meaning & Key Takeaway of: Tis evident, that as common Air when…" description: "\"Tis evident, that as common Air when reduc'd to half Its wonted extent, obtained near about twice as forcible a Spring as it had before; so this thus- ..." image: "https://sms4smile.com/quotes/i/2be/robert-boyle-8086_quote_tis-evident-that-as-common-air-when-redu_1398103.jpg" --- # Tis evident, that as common Air when reduc'd to half Its… ![“Tis evident, that as common Air when reduc'd to half Its wonted extent, obtained near about twice as forcible a Spring as it had before; so this thus- comprest Air being further thrust into half this narrow room, obtained thereby a Spring about as strong again as that It last had, and consequently…” quote by Robert Boyle](https://sms4smile.com/quotes/i/2be/robert-boyle-8086_quote_tis-evident-that-as-common-air-when-redu_1398103.jpg) [Download](https://sms4smile.com/quotes/i/2be/robert-boyle-8086_quote_tis-evident-that-as-common-air-when-redu_1398103.jpg) [Open image](https://sms4smile.com/quotes/i/2be/robert-boyle-8086_quote_tis-evident-that-as-common-air-when-redu_1398103.jpg) > “Tis evident, that as common Air when reduc'd to half Its wonted extent, obtained near about twice as forcible a Spring as it had before; so this thus- comprest Air being further thrust into half this narrow room, obtained thereby a Spring about as strong again as that It last had, and consequently four times as strong as that of the common Air. And there is no cause to doubt, that If we had been here furnisht with a greater quantity of Quicksilver and a very long Tube, we might by a further compression of the included Air have made It counter-balance 'the pressure' of a far taller and heavier Cylinder of Mercury. For no man perhaps yet knows how near to an infinite compression the Air may be capable of, If the compressing force be competently increast.” [Robert Boyle](https://sms4smile.com/quotes/author/robert-boyle/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Compressing air to half its volume doubles its pressure, and further compression can increase it dramatically, illustrating the principle of gas compression and potential limits. **In simple terms:** Halving air volume doubles pressure; more compression raises it further. Key Takeaway Explore limits of compression. Themes science physics experimentation Mood inquisitive analytical Type educational scientific When to use this quote - laboratory experiments - industrial applications - engineering design - educational demonstrations Key Concepts gas laws pressure compression potential limits Questions to Reflect On - What are the real-world constraints on compressing gases? - How does temperature affect pressure during compression? A Different Perspective Practical limits depend on material strength and temperature control. ★ ★ ★ ★ ★ No ratings yet [Compressing Force](https://sms4smile.com/quotes/about/compressing-force-4891387/) [Compression Air](https://sms4smile.com/quotes/about/compression-air-4891390/) [Forcible Spring](https://sms4smile.com/quotes/about/forcible-spring-4891386/) [Obtained Spring](https://sms4smile.com/quotes/about/obtained-spring-4891389/) [Twice Forcible](https://sms4smile.com/quotes/about/twice-forcible-4891388/) ## Related quotes > [The least unhappy persons do, in so fickle and so tempestuous a sea as this world, meet with many more either cross winds or…](https://sms4smile.com/quotes/robert-boyle/the-least-unhappy-persons-do-in-so-fickle-and-so-tempestuous-a-sea-as/) [Robert Boyle](https://sms4smile.com/quotes/author/robert-boyle/) > [Divers of Hermetic Books have such involv'd Obscuritys that they may justly be compar'd to Riddles written in Cyphers. 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And there is no cause to doubt, that If we had been here furnisht with a greater quantity of Quicksilver and a very long Tube, we might by a further compression of the included Air have made It counter-balance 'the pressure' of a far taller and heavier Cylinder of Mercury. 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