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Discover how Ox-bow lake is formed |
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| Date: 2009-04-04 06:14:21 - Added by: admin |
| Views: 69 - Votes: 0 - Rating: 0 |
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Land Breeze |
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| Date: 2009-04-04 06:08:11 - Added by: admin |
| Views: 68 - Votes: 0 - Rating: 0 |
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Soil Formation in Geography |
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| Date: 2009-04-04 05:56:59 - Added by: admin |
| Views: 84 - Votes: 0 - Rating: 0 |
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Four Stroke Engine |
| Today, internal combustion engines in cars, trucks, motorcycles, aircraft, construction machinery and many others, most commonly use a four-stroke cycle. The four strokes refer to intake, compression, combustion (power), and exhaust strokes that occur during two crankshaft rotations per working cycle of the Gasoline engine and Diesel engine. |
| Date: 2009-04-04 05:52:52 - Added by: admin |
| Views: 60 - Votes: 0 - Rating: 0 |
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Two Stroke Engine |
| A two-stroke engine is an internal combustion engine which completes the thermodynamic cycle in two movements of the piston (compared to twice that number for a four-stroke engine). This increased efficiency is accomplished by using the beginning of the compression stroke and the end of the combustion stroke to simultaneously perform the intake and exhaust functions. Since the two stroke engine fires on every revolution of the crankshaft, a two stroke engine is usually more powerful than a four stroke engine of equivalent size. This, coupled with their lighter, simpler construction, makes the two stroke engine popular in chainsaws, line trimmers, outboard motors, snowmobiles, jet-skis, light motorcycles, and model airplanes. Unfortunately, most two stroke engines are inefficient and are terrible polluters due to the amount of unspent fuel that escapes through the exhaust port. |
| Date: 2009-04-02 10:25:50 - Added by: admin |
| Views: 56 - Votes: 0 - Rating: 0 |
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Phases Of moon |
| Have you ever wondered what causes the moon phases? We all know that its appearance changes over time. But why? The good way to understand the phases of the moon is to examine an earth-moon-sun in animation: |
| Date: 2009-03-08 23:21:19 - Added by: admin |
| Views: 85 - Votes: 0 - Rating: 0 |
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Pendulum Concept |
| Pendulum Concept |
| Date: 2009-03-08 23:07:57 - Added by: admin |
| Views: 104 - Votes: 0 - Rating: 0 |
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Adding Positive & Negetive numbers |
| Adding Positive & Negetive numbers |
| Date: 2009-03-08 23:03:22 - Added by: admin |
| Views: 89 - Votes: 0 - Rating: 0 |
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Sea Breeze |
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| Date: 2009-03-08 23:00:35 - Added by: admin |
| Views: 120 - Votes: 0 - Rating: 0 |
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APJ |
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| Date: 2009-03-05 05:16:50 - Added by: admin |
| Views: 144 - Votes: 0 - Rating: 0 |
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