Charge When Shipped

A capacitor is a device for storing charge. In this simulation, you can investigate a relatively simple capacitor, known as a parallel-plate capacitor. It consists of two identical metal plates, placed parallel to one another. The capacitor can be charged by connecting one plate to the positive...

In this simulation, you can investigate the idea of the force between charged objects. Initially, the simulation sets up three charged objects, one at each corner of an equilateral triangle. The charges have different magnitudes - your job is to rank the charges based on their magnitudes, from...

The EJS Electric Multipole Model of a point charge (monopole), a dipole, or a quadrupole can show either field vectors or the scalar potential (voltage). A slider changes the charge and a movable detector shows the electric field direction and magnitude or measures the potential. Detector values...


Platforms: Mac

Play ball! Add charges to the Field of Dreams and see how they react to the electric field. Turn on a background electric field and adjust the direction and magnitude. (Kevin Costner not included). * Explain the relation between the size and direction of the blue electric field lines to the sign...


Platforms: Mac

When will objects float and when will they sink? Learn how buoyancy works with blocks. Arrows show the applied forces, and you can modify the properties of the blocks and the fluid. Sample Learning Goals: * Predict whether an object will sink or float when placed in a liquid, given densities...


Platforms: Mac

MetroidRL is a roguelike game based on the Metroid series. Current Status Alpha 0.73, November 21 2010 Features * Nonlinear advancement: You must explore the base in order to overcome the different obstacles you will find. * No experience levels: All advancement is based on the suit upgrades...


Platforms: Mac

IMAP Upload is a free and open source tool for uploading a local mbox file to IMAP4 server. Very useful for migrating from local mail client to Gmail. Here are some key features of "IMAP Upload": ?*A* Read messages stored in mbox format which is used by many mail clients such as Thunderbird....


Platforms: Mac

MMS Decoder provides a script for sending MMS messages to a Web page. MMS Decoder can receive MMS messages, decode them, and display them on a Web page. This is done by acting as an MMSC, which is a server to which MMS messages are sent. The only requirement to get this to work is an internet...


Platforms: *nix

If you have problems of rapidly loosing power on your laptop battery this might just happen because you are overcharging it. This might be true for even the most expensive laptops out there. Sometimes your battery might be under a lot of stress running towards the last percentages of its full...


Platforms: Windows, Windows 8, Windows 7, Windows Server

HammerSnipe PowerTool is a specialized eBay and online auction browser and bid sniping tool that can place last-minute snipe bids for you even when you are away from your computer and not online. Use it to browse your favorite auction site. When you see something you like, a single click allows...


Platforms: Windows

Launcher is an easy-to-use file and application shortcut manager that can launch all kinds of files and programs. Drag-and-drop operations are supported when editing items shown in the Launcher "open and launch" menu in system tray. Create an unlimited amount of user defined sub-folders and item...


Platforms: Windows

Stardust Desktop Lock 5 is a small and convenient tool, useful for quickly locking down your computer system. When a computer is locked down it is "password protected". During this phase it is either sleeping, displaying a login screen, a screen saver or asking for a password. Desktop Lock...


Platforms: Windows

Peer to Peer Networking Tips and Tricks was developed to assist those running a small office (and home users) who are unfamiliar with networks but want the advantages of one. You may find the "help" provided by your local computer sales person less than helpful. They’ll try to sell you...


Platforms: Windows

Translators often have difficulties when translating HTML documents, as they are not sure which sections of the file are to be translated and which are to be left unchanged.


Platforms: Windows

Internet security has long become a buzz word. Everywhere you go, you hear about it. Naturally, it is great to feel yourself safe and secure when surfing the Net. When you enter your password on most sites, you see only asterisk signs. This feature is intended to protect your passwords; but...


Platforms: Windows

Press Baron is a turn based game of strategy and skill. When playing you bid for a newspaper against three other Press Barons and then you manage, edit and publish your newspaper each week. You are in competition with the other barons who each start off with one newspaper. You must make as much...


Platforms: Windows

DeskWipe minimize all active windows when you move the mouse cursor to the left edge of your screen (or any edge of your choice). This way you have easy access to your favorite desktop icons.


Platforms: Windows

Take the power of CrocCrawler with you anywhere on the web. The CrocCrawler Toolbar increases your ability to find information from anywhere on the web and takes only seconds to install. When the CrocCrawler Toolbar is installed, it automatically appears along with the Internet Explorer toolbar....


Platforms: Windows

The aim of LineIt is to earn points, as much as you can. You have to move gem through free cells on the board. When 4 or more gems with same color will be connected in a row (horisontal, vertical or diagonal), these gems will be deleted from the board and you will earn points (4 points for 4...


Platforms: Windows

This game is very simple to play, anyone can enjoy this game. ClickTris is the game for everyone. And this game can be played on old or new computers, it does not needs new computer. It is a classical tetris game. Rules are very simple. During all game many pieces fall from top of window. Piece...


Platforms: Windows