<meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/> <meta name='google-adsense-platform-domain' content='blogspot.com'/> <!-- --><style type="text/css">@import url(https://www.blogger.com/static/v1/v-css/navbar/3334278262-classic.css); div.b-mobile {display:none;} </style> </head><body><script type="text/javascript"> function setAttributeOnload(object, attribute, val) { if(window.addEventListener) { window.addEventListener('load', function(){ object[attribute] = val; }, false); } else { window.attachEvent('onload', function(){ object[attribute] = val; }); } } </script> <div id="navbar-iframe-container"></div> <script type="text/javascript" src="https://apis.google.com/js/platform.js"></script> <script type="text/javascript"> gapi.load("gapi.iframes:gapi.iframes.style.bubble", function() { if (gapi.iframes && gapi.iframes.getContext) { gapi.iframes.getContext().openChild({ url: 'https://www.blogger.com/navbar/6019583289058896957?origin\x3dhttp://greeenhouse.blogspot.com', where: document.getElementById("navbar-iframe-container"), id: "navbar-iframe" }); } }); </script>

Saturday, April 26, 2008

HELLO! im reading the textbook, but it doesnt say much about solar energy.
anyway i shall just post what im reading

it says that most of the Sun's energy vanishes in space, and only a small amount is intercepted by Earth.
the energy that comes to Earth, is then reflected by clouds, and the amount of solar radiation depends on the location, time, and nature of the cloud cover.
a smaller amount is reflected by the sea and land masses.
the solar energy is also absorbed by the atmosphere, and less solar energy is absorbed at noon, and more is absorbed at sunset. (i wonder why)

the Earth spins which the equator inclined at an angle to its orbital plane with the Sun. in this arrangement, the force, exerted on the Earth by the Sun, causes the Earth to precess. this precession, together with the elliptical orbit of the Earth, affects the amount of solar energy falling onto the ground. Solar energy is not uniformly distributed over the surface of the Earth, which means that some regions will have too much energy(eg deserts) and some places will have less energy (eg north/south poles).
-Ethel (:


SHIFT. (wait till u know what it means...) 10:47 PM


Sunday, April 20, 2008
HELLO :D
YOU CAN START POSTING NOW YAY :DD
-ethel


SHIFT. (wait till u know what it means...) 10:08 PM


profile

ethel(:, xuewei, chunhui-.-, yunjing
Physics BLOG :D
SOLAR ENERGY
AND GREENHOUSES


tagboard


your tagboard here.
friends

NO LINKS :D
archives

  • April 2008
  • May 2008
  • June 2008


    • credits

    ME