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Science & Technology, Page 2 </h1>
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<article class="post-156 post type-post status-publish format-standard has-post-thumbnail hentry category-science-and-technology tag-big-bang tag-space column twocol has-thumbnail" id="post-156">
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<a href="https://fact.cat/how-big-was-the-universe-when-it-started/" rel="bookmark" title="How big was the universe when it started?">
<img width="332" height="464" alt="" data-srcset="https://fact.cat/wp-content/uploads/2014/01/big-bang-332x464.jpg 332w, https://fact.cat/wp-content/uploads/2014/01/big-bang-500x700.jpg 500w, https://fact.cat/wp-content/uploads/2014/01/big-bang.jpg 640w" data-src="https://fact.cat/wp-content/uploads/2014/01/big-bang-332x464.jpg" data-sizes="(max-width: 332px) 100vw, 332px" class="attachment-teaser-thumb size-teaser-thumb wp-post-image lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img width="332" height="464" src="https://fact.cat/wp-content/uploads/2014/01/big-bang-332x464.jpg" class="attachment-teaser-thumb size-teaser-thumb wp-post-image" alt="" srcset="https://fact.cat/wp-content/uploads/2014/01/big-bang-332x464.jpg 332w, https://fact.cat/wp-content/uploads/2014/01/big-bang-500x700.jpg 500w, https://fact.cat/wp-content/uploads/2014/01/big-bang.jpg 640w" sizes="(max-width: 332px) 100vw, 332px" /></noscript> </a>
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<div class="reblogdiv"><a href="https://www.tumblr.com/reblog/68927550262/wUSbvAiZ?redirect_to=%2Fblog%2Ffactcat%2F6"><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img src="https://fact.cat/wp-content/themes/t/images/reblog.png" title="reblog on tumblr" alt="reblog" /></noscript></noscript></noscript></noscript></a></div> <div class="entry-container">
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<h2 class="entry-title"><a href="https://fact.cat/how-big-was-the-universe-when-it-started/" rel="bookmark" title="How big was the universe when it started?">How big was the universe when it started?</a></h2>
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<p>When the universe started in the explosive Big Bang around 13.7 billion years ago, it was smaller than the period at the …</p>
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</article> <article class="post-135 post type-post status-publish format-standard has-post-thumbnail hentry category-nature-and-geography category-science-and-technology tag-apollo tag-earth tag-space column twocol has-thumbnail" id="post-135">
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<a href="https://fact.cat/an-upside-down-portrait-of-earth/" rel="bookmark" title="An upside down portrait of Earth">
<img width="332" height="464" alt="" data-srcset="https://fact.cat/wp-content/uploads/2014/01/blue-marble-332x464.jpg 332w, https://fact.cat/wp-content/uploads/2014/01/blue-marble-500x700.jpg 500w, https://fact.cat/wp-content/uploads/2014/01/blue-marble.jpg 640w" data-src="https://fact.cat/wp-content/uploads/2014/01/blue-marble-332x464.jpg" data-sizes="(max-width: 332px) 100vw, 332px" class="attachment-teaser-thumb size-teaser-thumb wp-post-image lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img width="332" height="464" src="https://fact.cat/wp-content/uploads/2014/01/blue-marble-332x464.jpg" class="attachment-teaser-thumb size-teaser-thumb wp-post-image" alt="" srcset="https://fact.cat/wp-content/uploads/2014/01/blue-marble-332x464.jpg 332w, https://fact.cat/wp-content/uploads/2014/01/blue-marble-500x700.jpg 500w, https://fact.cat/wp-content/uploads/2014/01/blue-marble.jpg 640w" sizes="(max-width: 332px) 100vw, 332px" /></noscript> </a>
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<div class="reblogdiv"><a href="https://www.tumblr.com/reblog/68489016820/WD7nbl7c?redirect_to=%2Fblog%2Ffactcat%2F7"><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img src="https://fact.cat/wp-content/themes/t/images/reblog.png" title="reblog on tumblr" alt="reblog" /></noscript></noscript></noscript></noscript></a></div> <div class="entry-container">
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<h2 class="entry-title"><a href="https://fact.cat/an-upside-down-portrait-of-earth/" rel="bookmark" title="An upside down portrait of Earth">An upside down portrait of Earth</a></h2>
</header>
<div class="entry-summary">
<p>The Blue Marble photograph, Earth’s famous portrait from 1972 taken by Apollo 17 was originally shot “upside down”.</p>
</div>
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</div>
</div>
</article> <article class="post-129 post type-post status-publish format-standard has-post-thumbnail hentry category-inventions category-science-and-technology tag-cambridge tag-university tag-webcam column twocol has-thumbnail" id="post-129">
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<a href="https://fact.cat/how-was-the-webcam-invented/" rel="bookmark" title="How was the webcam invented?">
<img width="332" height="464" alt="" data-srcset="https://fact.cat/wp-content/uploads/2014/01/webcam-332x464.jpg 332w, https://fact.cat/wp-content/uploads/2014/01/webcam-500x700.jpg 500w, https://fact.cat/wp-content/uploads/2014/01/webcam.jpg 640w" data-src="https://fact.cat/wp-content/uploads/2014/01/webcam-332x464.jpg" data-sizes="(max-width: 332px) 100vw, 332px" class="attachment-teaser-thumb size-teaser-thumb wp-post-image lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img width="332" height="464" src="https://fact.cat/wp-content/uploads/2014/01/webcam-332x464.jpg" class="attachment-teaser-thumb size-teaser-thumb wp-post-image" alt="" srcset="https://fact.cat/wp-content/uploads/2014/01/webcam-332x464.jpg 332w, https://fact.cat/wp-content/uploads/2014/01/webcam-500x700.jpg 500w, https://fact.cat/wp-content/uploads/2014/01/webcam.jpg 640w" sizes="(max-width: 332px) 100vw, 332px" /></noscript> </a>
</figure>
<div class="reblogdiv"><a href="https://www.tumblr.com/reblog/68396496304/c08qbe5i?redirect_to=%2Fblog%2Ffactcat%2F7"><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img title="reblog on tumblr" alt="reblog" data-src="https://fact.cat/wp-content/themes/t/images/reblog.png" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img src="https://fact.cat/wp-content/themes/t/images/reblog.png" title="reblog on tumblr" alt="reblog" /></noscript></noscript></noscript></noscript></a></div> <div class="entry-container">
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<h2 class="entry-title"><a href="https://fact.cat/how-was-the-webcam-invented/" rel="bookmark" title="How was the webcam invented?">How was the webcam invented?</a></h2>
</header>
<div class="entry-summary">
<p>Cambridge scientists invented the webcam so they could see if the coffee pot was full or not from different rooms.</p>
</div>
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</article> <article class="post-39 post type-post status-publish format-standard has-post-thumbnail hentry category-science-and-technology tag-apollo tag-moon tag-space tag-wright-brothers column twocol has-thumbnail" id="post-39">
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<h2 class="entry-title"><a href="https://fact.cat/how-long-after-the-first-airplane-did-man-step-on-the-moon/" rel="bookmark" title="How long after the first airplane did man step on the moon?">How long after the first airplane did man step on the moon?</a></h2>
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<p>Only 66 years separate the first flight of the Wright brothers from Apollo’s landing on the moon.</p>
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