e39465ad2f
new file: Files/flashplayer_32_sa.exe
new file: favicon.ico
new file: globe.gif
new file: imgs/download.png
new file: imgs/zuck.jpg
new file: index.html
new file: other.ico
new file: script.js
new file: site.webmanifest
new file: sitemap.html
new file: styles/backround.css
new file: styles/border.css
new file: styles/fonts/Titillium_Web/OFL.txt
new file: styles/fonts/Titillium_Web/TitilliumWeb-Black.ttf
new file: styles/fonts/Titillium_Web/TitilliumWeb-Bold.ttf
new file: styles/fonts/Titillium_Web/TitilliumWeb-BoldItalic.ttf
new file: styles/fonts/Titillium_Web/TitilliumWeb-ExtraLight.ttf
new file: styles/fonts/Titillium_Web/TitilliumWeb-ExtraLightItalic.ttf
new file: styles/fonts/Titillium_Web/TitilliumWeb-Italic.ttf
new file: styles/fonts/Titillium_Web/TitilliumWeb-Light.ttf
new file: styles/fonts/Titillium_Web/TitilliumWeb-LightItalic.ttf
new file: styles/fonts/Titillium_Web/TitilliumWeb-Regular.ttf
new file: styles/fonts/Titillium_Web/TitilliumWeb-SemiBold.ttf
new file: styles/fonts/Titillium_Web/TitilliumWeb-SemiBoldItalic.ttf
new file: styles/fonts/webfontkit-20221027-163353/generator_config.txt
new file: styles/fonts/webfontkit-20221027-163353/specimen_files/grid_12-825-55-15.css
new file: styles/fonts/webfontkit-20221027-163353/specimen_files/specimen_stylesheet.css
new file: styles/fonts/webfontkit-20221027-163353/stylesheet.css
new file: styles/fonts/webfontkit-20221027-163353/titilliumweb-extralight-demo.html
new file: styles/fonts/webfontkit-20221027-163353/titilliumweb-extralight-webfont.woff
new file: styles/fonts/webfontkit-20221027-163353/titilliumweb-extralight-webfont.woff2
new file: styles/fonts/webfontkit-20221027-165950/generator_config.txt
new file: styles/fonts/webfontkit-20221027-165950/specimen_files/grid_12-825-55-15.css
new file: styles/fonts/webfontkit-20221027-165950/specimen_files/specimen_stylesheet.css
new file: styles/fonts/webfontkit-20221027-165950/stylesheet.css
new file: styles/fonts/webfontkit-20221027-165950/titilliumweb-bold-demo.html
new file: styles/fonts/webfontkit-20221027-165950/titilliumweb-bold-webfont.woff
new file: styles/fonts/webfontkit-20221027-165950/titilliumweb-bold-webfont.woff2
new file: styles/style.css
new file: tools/2048/.gitignore
new file: tools/2048/.jshintrc
new file: tools/2048/CONTRIBUTING.md
new file: tools/2048/LICENSE.txt
new file: tools/2048/README.md
new file: tools/2048/Rakefile
new file: tools/2048/favicon.ico
new file: tools/2048/index.html
new file: tools/2048/js/animframe_polyfill.js
new file: tools/2048/js/application.js
new file: tools/2048/js/bind_polyfill.js
new file: tools/2048/js/classlist_polyfill.js
new file: tools/2048/js/game_manager.js
new file: tools/2048/js/grid.js
new file: tools/2048/js/html_actuator.js
new file: tools/2048/js/keyboard_input_manager.js
new file: tools/2048/js/local_storage_manager.js
new file: tools/2048/js/tile.js
new file: tools/2048/meta/apple-touch-icon.png
new file: tools/webretro/cores/neocd_libretro.js
new file: tools/webretro/cores/neocd_libretro.wasm
new file: tools/webretro/cores/nestopia_libretro.js
new file: tools/webretro/cores/nestopia_libretro.wasm
new file: tools/webretro/cores/o2em_libretro.js
new file: tools/webretro/cores/o2em_libretro.wasm
new file: tools/webretro/cores/opera_libretro.js
new file: tools/webretro/cores/opera_libretro.wasm
153 lines
7.4 KiB
HTML
153 lines
7.4 KiB
HTML
<!doctype html>
|
||
<html lang="en">
|
||
<!-- #BeginTemplate "/Templates/Main.dwt" --><!-- DW6 -->
|
||
<!-- Mirrored from www.mathsisfun.com/measure/lengths-small-large.html by HTTrack Website Copier/3.x [XR&CO'2014], Sat, 29 Oct 2022 01:03:45 GMT -->
|
||
<head>
|
||
<meta charset="UTF-8">
|
||
<!-- #BeginEditable "doctitle" -->
|
||
<title>Lengths From Very Small to Very Large</title>
|
||
<script language="JavaScript" type="text/javascript">reSpell=[["meter","metre"],["meters","metres"],["femtometer","femtometre"],["picometers","picometres"],["nanometer","nanometre"],
|
||
["micrometer","micrometre"],["micrometers","micrometres"],["millimeter","millimetre"],["kilometers","kilometres"],["megameter","megametre"],["megameters","megametres"],
|
||
["gigameter","gigametre"],["gigameters","gigametres"],["petameter","petametre"],["petameters","petametres"],["zettameter","zettametre"]];
|
||
</script>
|
||
<meta name="Description" content="Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.">
|
||
<!-- #EndEditable -->
|
||
<meta name="keywords" content="math, maths, mathematics, school, homework, education">
|
||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||
<meta name="HandheldFriendly" content="true">
|
||
<meta name="referrer" content="always">
|
||
<link rel="stylesheet" type="text/css" href="../style3.css">
|
||
<script src="../main3.js"></script>
|
||
</head>
|
||
|
||
<body id="bodybg">
|
||
<div class="bg">
|
||
<div id="stt"></div>
|
||
<header>
|
||
<div id="hdr"></div>
|
||
<div id="logo"><a href="../index.html"><img src="../images/style/logo.svg" alt="Math is Fun"></a></div>
|
||
<div id="gtran">
|
||
<script>document.write(getTrans());</script>
|
||
</div>
|
||
<div id="adTopOuter" class="centerfull noprint">
|
||
<div id="adTop">
|
||
<script>document.write(getAdTop());</script>
|
||
</div>
|
||
</div>
|
||
<div id="adHide">
|
||
<div id="showAds1"><a href="javascript:showAds()">Show Ads</a></div>
|
||
<div id="hideAds1"><a href="javascript:hideAds()">Hide Ads</a><br>
|
||
<a href="../about-ads.html">About Ads</a></div>
|
||
</div>
|
||
</header>
|
||
<nav>
|
||
<div id="menuWide" class="menu">
|
||
<script>document.write(getMenu(0));</script>
|
||
</div>
|
||
<div id="linkto">
|
||
<div id="linktort">
|
||
<script>document.write(getLinks());</script>
|
||
</div>
|
||
</div>
|
||
<div id="search" role="search">
|
||
<script>document.write(getSearch());</script>
|
||
</div>
|
||
<div id="menuSlim" class="menu">
|
||
<script>document.write(getMenu(1));</script>
|
||
</div>
|
||
<div id="menuTiny" class="menu">
|
||
<script>document.write(getMenu(2));</script>
|
||
</div>
|
||
</nav>
|
||
<div id="extra"></div>
|
||
</div>
|
||
<article id="content" role="main">
|
||
<!-- #BeginEditable "Body" -->
|
||
|
||
<h1 class="center">Lengths From Very Small to Very Large</h1>
|
||
|
||
<p>Our Universe has very small things (like atoms), and very large things (like galaxies).</p>
|
||
<p>And this is where <a href="../metric-numbers.html">metric prefixes</a> like <b>milli-</b> and <b>kilo-</b> can be very useful.</p>
|
||
<div class="example">
|
||
<p>Example: the distance between London and New York is about <b>5,580,000 meters</b>.</p>
|
||
<p>But it is easier to use 5,580 <b>kilo</b>meters.</p></div>
|
||
<p>Here is an illustration of sizes, from the very small (a Quark) to the very large (the known Universe):</p>
|
||
|
||
<p class="center"><img src="images/length-continuum.svg" alt="length continuum" style="max-width:100%"></p>
|
||
<p class="center">The sizes are <b>in meters</b> using metric numbers.<br>
|
||
(Just add the word "meter" after them, so we get "<b>milli</b>meter", "<b>tera</b>meter", etc.)</p>
|
||
<div class="example">
|
||
<h3>Examples:</h3>
|
||
<p>A Quark is about a <b>femto</b>meter in size.</p>
|
||
<p>Cells are about a <b>micro</b>meter in size (many different sizes though!)</p>
|
||
<p>The Milky Way is about a <b>zetta</b>meter in size.</p>
|
||
</div>
|
||
<h2>The Numbers</h2>
|
||
<p>The numbers (like <b>10<sup>6</sup></b>) use <a href="../numbers/scientific-notation.html">Scientific Notation</a> to show how big the value is.</p>
|
||
<div class="example">
|
||
<p>Example: <b>10<sup>6</sup></b> means to use 10 in a multiplication <b>6</b> times:</p>
|
||
<p class="center larger">10 × 10 × 10 × 10 × 10 × 10 = <b>1,000,000</b></p>
|
||
<p class="center">But in practice it is easier to think <b>"a 1 followed by 6 zeros"</b></p>
|
||
<p>Which is a million.</p>
|
||
<p>The prefix is <b>mega-</b>, so a megameter is a million meters.</p>
|
||
</div>
|
||
<div class="example">
|
||
<p>Example: <b>10<sup>9</sup></b> is a 1 followed by <b>9</b> zeros: 1,000,000,000 (a billion).</p>
|
||
<p>The prefix is <b>giga-</b>, so a gigameter is a billion meters.</p>
|
||
</div> <div class="example">
|
||
<p>Example: <b>10<sup>-9</sup></b> is a 1 moved nine places the other side of the decimal: 0.000 000 001</p>
|
||
<p>It is also called a <b>billionth</b>.</p>
|
||
<p>The prefix is <b>nano-</b>, so a nanometer is a billionth of a meter.</p>
|
||
</div>
|
||
|
||
<p>Looking at the illustration we can see that a person is about 1 meter in size, a mountain is about <b>10<sup>3</sup></b> (one thousand) meters in size, and the diameter of the Sun is about <b>10<sup>9</sup></b> (one billion) meters.</p>
|
||
<div class="example">
|
||
<p>Example: We could also say the Sun is about a "gigameter" in size</p>
|
||
<p>It's diameter is actually 1.392×10<sup>9</sup> meters, or <b>1.392 gigameters</b>, or simply 1.392 Gm</p>
|
||
</div>
|
||
<p>Some Interesting Facts:</p>
|
||
<ul>
|
||
<li>The smallest length with any meaning is the Planck length (about 1.6 x 10<sup>-35</sup> meter)</li>
|
||
<li>Quarks are very very small (less than 10<sup>-19</sup> meters)</li>
|
||
<li>A Hydrogen atom is about 100 picometers in diameter (1.06 x 10<sup>-10</sup> meters)</li>
|
||
<li>Molecules are around the billionths of a meter in size. That is 0.000000001 meters. Some molecules are smaller and some bigger, though.</li>
|
||
<li>A DNA molecule has a width of about 2.5 nanometers (but <i>unfolded</i> is about 2 meters!)</li>
|
||
<li>A skin cell is about 30 micrometers across (0.000 030 m)</li>
|
||
<li>People are a little over a meter tall (1.7 m is typical for men)</li>
|
||
<li>Mountains are kilometers in size (Mount Everest is 8,848 m high)</li>
|
||
<li>The Earth is megameters in size (a megameter is a thousand kilometers, and the Earth's diameter is 12,742 km)</li>
|
||
<li>The Sun's diameter is about a gigameter (actually 1.39 x 10<sup>9 </sup> meters)</li>
|
||
<li>A Light Year is about 10 petameters in size (a petameter is 1,000,000,000,000,000 meters, which is a 1 followed by 15 zeros, or 10<sup>15</sup>)</li>
|
||
<li>The Milky Way is about 1 zettameter across (1,000,000,000,000,000,000,000 meters, which is a 1 followed by 21 zeros, or 10<sup>21</sup>)</li>
|
||
<li>The Universe is very very big</li>
|
||
</ul>
|
||
<p> </p>
|
||
<div class="questions">
|
||
<script>getQ(3477,3478,3479,3480);</script>
|
||
</div>
|
||
|
||
<div class="related">
|
||
<a href="../metric-numbers.html">Metric Prefixes</a>
|
||
<a href="doubling-paper.html">Doubling Paper</a>
|
||
<a href="index.html">Measurement Index</a>
|
||
</div>
|
||
|
||
<!-- #EndEditable -->
|
||
|
||
</article>
|
||
<div id="adend" class="centerfull noprint">
|
||
<script>document.write(getAdEnd());</script>
|
||
</div>
|
||
<footer id="footer" class="centerfull noprint">
|
||
<script>document.write(getFooter());</script>
|
||
</footer>
|
||
<div id="copyrt">
|
||
Copyright © 2020 MathsIsFun.com
|
||
</div>
|
||
<script>document.write(getBodyEnd());</script>
|
||
</body>
|
||
<!-- #EndTemplate -->
|
||
|
||
<!-- Mirrored from www.mathsisfun.com/measure/lengths-small-large.html by HTTrack Website Copier/3.x [XR&CO'2014], Sat, 29 Oct 2022 01:03:45 GMT -->
|
||
</html>
|