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      <title>Copernican Revolution_Alejandra by ALEJANDRA HERNANDEZ</title>
      <link>https://padlet.com/hernaale030/6it2rfcajup3</link>
      <description>Made with good vibes</description>
      <language>en-us</language>
      <pubDate>2020-02-20 15:55:07 UTC</pubDate>
      <lastBuildDate>2024-06-01 00:54:08 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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         <title>Stonehenge</title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448108729</link>
         <description><![CDATA[<div>- Construction began 2800 B.C.<br>- Location: Wiltshire, England<br>- Purpose remains controversial but the center was carefully aligned in order to clearly view the summer solstices it helped predict the eclipses<br><br><br></div>]]></description>
         <enclosure url="https://www.livescience.com/22427-stonehenge-facts.html" />
         <pubDate>2020-02-20 15:57:48 UTC</pubDate>
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         <title>Ptolemy </title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448125995</link>
         <description><![CDATA[<div>- Born 100 A.D.<br>- Greek Mathematician<br>- Location: Alexandria in Roman province of Egypt <br>- Founder of Ptolemaic model of solar system; Earth is at center, everything else revolves around Earth<br>- Epicycles explained the backwards motion of planets</div><div>- 80 circular paths to explain motion of the known celestial bodies</div><div><br></div><div><br><br></div>]]></description>
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         <pubDate>2020-02-20 16:20:12 UTC</pubDate>
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         <title>Copernicus </title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448128824</link>
         <description><![CDATA[<div>- 1473-1543<br>- Location: Poland <br>- Founder of Heliocentric model; Sun is the center, everything revolves around it <br>- Most accurate model of its time <br>- Orbits are in circles <br><br></div>]]></description>
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         <pubDate>2020-02-20 16:24:23 UTC</pubDate>
         <guid>https://padlet.com/hernaale030/6it2rfcajup3/wish/448128824</guid>
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         <title>Galileo</title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448133426</link>
         <description><![CDATA[<div>- 1564-1642<br>- Location: Italy <br>- Mathematician and philosopher <br>- Used new technology of the time; he constructed his own telescope <br>- Discovered: moons geography, sun spots on sun and Jupiter’s moons <br>- Published his work supporting Heliocentric model; jailed for opposing the churches common belief<br><br></div>]]></description>
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         <pubDate>2020-02-20 16:31:05 UTC</pubDate>
         <guid>https://padlet.com/hernaale030/6it2rfcajup3/wish/448133426</guid>
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         <title>Brahe</title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448139573</link>
         <description><![CDATA[<div>- 1546-1601<br>- Location: Europe (Denmark)<br>- Studied astrology, alchemy and medicine  <br>- Made his observations in his own observatory utilizing his own instruments he made <br>- Kept detailed records of stars, planets, and other astronomical events including a comet and a supernova<br>- identified positions of celestial bodies which helped in the creation of the laws of planetary motion<br><br></div>]]></description>
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         <pubDate>2020-02-20 16:39:04 UTC</pubDate>
         <guid>https://padlet.com/hernaale030/6it2rfcajup3/wish/448139573</guid>
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         <title>Kepler</title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448143998</link>
         <description><![CDATA[<div>- 1571-1630 <br>- Location: Germany <br>- Used Brahe’s work <br>- Founder of Kepler’s Laws of Planetary Motion <br>    - 1: The orbital paths of the planets are elliptical (not circular), with the Sun at one focus; eccentricity; closer to 0 = circular, closer to 1 = ovular <br>     - 2: An imaginary line connecting the Sun to any planet sweeps out equal area in equal amounts of time<br>       - 3: The square of a planets orbital period is proportional to the cube of it’s semimajor axis<br><br></div>]]></description>
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         <pubDate>2020-02-20 16:44:22 UTC</pubDate>
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         <title>Newton</title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448146305</link>
         <description><![CDATA[<div>- 1643-1727<br>- Location: England <br>- Discovered gravity and the law of universal gravitation<br>- Acceleration due to gravity g=9.81 m/s^2</div><div>- Law of inertia: an object in motion will remain in motion unless acted on by an outside force<br>- Universal gravitational: Every particle attracts every other particle in the universe with a force directly proportional to the product of their masses and inversely proportional to the distance between their centers</div>]]></description>
         <enclosure url="https://www.universetoday.com/38643/what-did-isaac-newton-discover/" />
         <pubDate>2020-02-20 16:47:33 UTC</pubDate>
         <guid>https://padlet.com/hernaale030/6it2rfcajup3/wish/448146305</guid>
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         <title>Einstein</title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448655141</link>
         <description><![CDATA[<div>- 1879-1955<br>- Location: Germany <br>- Developed theories of special and general relativity <br>- Special Relativity: relating space and time. The observance of space and time are relative to each individual observer<br>- General Relativity: theory of gravitation that explains how objects with mass warp space time: massive objects bend space and slow down time<br><br></div>]]></description>
         <enclosure url="https://www.youtube.com/watch?v=B6kreUskcpo" />
         <pubDate>2020-02-21 15:55:59 UTC</pubDate>
         <guid>https://padlet.com/hernaale030/6it2rfcajup3/wish/448655141</guid>
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         <title>Hawking </title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448659101</link>
         <description><![CDATA[<div>- 1942-2018 <br>- Location: Europe (United Kingdom)<br>- Predicted the existence of black holes and how they emit Hawking radiation <br>- Hawking Radiation: electromagnetic radiation given off by a black hole, due to quantum effects, causes it to lose matter. If a black hole loses more matter than it gains, it could shrink and eventually vanish<br><br></div>]]></description>
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         <pubDate>2020-02-21 16:01:31 UTC</pubDate>
         <guid>https://padlet.com/hernaale030/6it2rfcajup3/wish/448659101</guid>
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         <title>Hipparchus </title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448667273</link>
         <description><![CDATA[<div>- 190 B.C.-120 B.C.<br>- Location: Greece<br>- One of the first to theorize that the Earth orbited around the Sun<br>- Considered the founder of Trigonometry <br>- Ranked the stars by brightness<br><br></div>]]></description>
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         <pubDate>2020-02-21 16:12:16 UTC</pubDate>
         <guid>https://padlet.com/hernaale030/6it2rfcajup3/wish/448667273</guid>
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         <title>Invention and Improvement of Telescope</title>
         <author>hernaale030</author>
         <link>https://padlet.com/hernaale030/6it2rfcajup3/wish/448674522</link>
         <description><![CDATA[<div>- Hans Lippershey<br>-  First patented in 1608<br>- Location: The Netherlands (Dutch) <br>- Utilized an arrangement of lenses or curved mirrors and lenses, or various devices used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation<br>- Reflecting Telescope: a mirror where the light will bounce off and is then focused into a smaller area<br>- Refracting Telescope: uses lenses that focus the light as it travels towards the other end<br><br></div>]]></description>
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         <pubDate>2020-02-21 16:22:03 UTC</pubDate>
         <guid>https://padlet.com/hernaale030/6it2rfcajup3/wish/448674522</guid>
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