Demonoid.me Lesson Plan for Making a Speaker Laboratory ©1995 The Regents of the University of California by Regan Lum Introduction: A speaker is a device that converts an electronic signal into sound. figure 1 Purpose: In this laboratory, you will explore how a speaker works. Materials: 1 permanent magnet 2 feet of wire 1 pencil tape or glue 1 Styrofoam or paper cup 1 signal source (tape player) 1 plug with alligator clips for tape player Procedure: Assemble material as shown in figure 1. Leaving about 10 centimeters on the end, wrap the wire around a pencil to make a wire coil and tape or glue it to the bottom of the cup. Conclusion Does the volume control on the tape player work on your speaker? Return to CEA Science Education Home Page
15 Amazing Animated Short films We all love short animated films, but creating short film is very hard task. Putting whole story in 5 to 10 minutes is not easy. Can you imagine? I bet you will love these short animated movies, do let us know your favorite one, also feel free to share your favorite short film if it’s not present in the list. Granny O’Grimm’s Sleeping Beauty Oscar-nominated film of ‘Granny O’Grimm’, directed by Nicky Phelan, produced by Brown Bag Films, and written/voiced by Kathleen O’Rourke. Oktapodi (2007) In Oktapodi, these two cuties help each other escape the clutches of a tyrannical restaurant cook. This Side Up – A Short Animation by Liron Topaz A naive music-lover’s patience is tested on his quest to download music online, as his perspective on technology completely changes. Oxygen Oxygen tries to make friends on the playground. “Heavenly Appeals” a short film by David Lisbe After many millennia of being tortured in Hell, Raymond K. Marcelino and Bartolomeo: Bye Bye! Bunny Animation The Passenger Alma
Watch Movies with no limits The Ultimate Road Trip Playlist - 50 Best Road Trip Songs&|&... No road trip is complete without a playlist of songs that capture the spirit of traveling on the open road. So we’ve compiled a list of the 50 best road trip songs . In order to make this be-all end-all totally definitive list that all other lists look up to, the songs had to meet the following criteria: a.) encompass the excitement and freedom of road tripping b.) make the time pass faster c.) keep you awake without the assistance of questionably legal pills named “No Doze” d.) contain lyrics so singable that you’ll legitimately consider trying out for the next “American Idol” e.) keep you distracted long enough to make you forget you need to pee (which subsequently means stopping at a heinous rest stop where the bathroom stalls are tagged with death threats and truckers hit on you) f.) drown out the sound of your annoying friend who complains about a developing deep vein thrombosis from being crammed in the backseat (tough it up!) 50. Tags: Music
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DIY Solar USB Charger - Altoids If we use two rechargeable AAs that put out a total of 2.4Vs we're going to need a solar panel that is at least 3 - 4Vs just to meet basic levels of charging. The higher the voltage of our solar cell (or cells) the less light we need to charge up our batteries. Now we're also trying to fit this into an Altoids Tin, so we're limited in space. I have found some great 4V solar cells that perfectly fit into Altoids Tins. They're the same ones I use with my Solar AA Altoids Charger. Sure, a bigger and better solar cell would give us added power, but it wouldn't fit into our tin. You could also use a combination of several smaller cells to get your four volts. Just remember that when charging NiMh batteries we don't want to throw more than 10% of their capacity at them at any one time.
Invisible Web: What it is, Why it exists, How to find it, and Its inherent... What is the "Invisible Web", a.k.a. the "Deep Web"? The "visible web" is what you can find using general web search engines. It's also what you see in almost all subject directories. The "invisible web" is what you cannot find using these types of tools. The first version of this web page was written in 2000, when this topic was new and baffling to many web searchers. Since then, search engines' crawlers and indexing programs have overcome many of the technical barriers that made it impossible for them to find "invisible" web pages. These types of pages used to be invisible but can now be found in most search engine results: Pages in non-HTML formats (pdf, Word, Excel, PowerPoint), now converted into HTML. Why isn't everything visible? There are still some hurdles search engine crawlers cannot leap. The Contents of Searchable Databases. How to Find the Invisible Web Simply think "databases" and keep your eyes open. Examples: plane crash database languages database toxic chemicals database