Explain Threshold Voltage

* Explain how an image is formed by a converging lens using ray diagrams. * How changing the lens (radius, index and diameter) effects where the image appears and how it looks (magnification, brightness and inversion. Platforms: Mac

RC Circuit models the dynamical behavior of a voltage source attached in series to a resistor and capacitor. The source voltage can be chosen to be either a 10 volt sinusoidal or square wave with an adjustable frequency. Users can examine and change the model if they have Ejs installed. The RC... Platforms: Mac

This new version of the CCK adds capacitors, inductors and AC voltage sources to your toolbox! Now you can graph the current and voltage as a function of time. Main Topics * Circuits * Light Bulbs * Batteries * Switches * Ammeter * Voltmeter * Capacitor * Inductor * AC Voltage Platforms: Mac

* Explain what happens when you turn on the switch. * Determine whether the blue spheres are positive or negative charges. How can you tell? Platforms: Mac

File Sift groups files and directories to fit within a specified size threshold. This is useful when backing up to media of fixed size (ie cd-r media), and helps maximize the use of space on that media. Provides both graphical and command line interfac Platforms: *nix

c2ctl is an Intel Core and Core 2 frequency and voltage modification utility. Its main purpose is overclocking and / or "undervolting" and to enable SpeedStep. Platforms: *nix

Batteries, given their chemical nature, are prone to wear, corrosion, leakage and outright failure due to events like short circuits and lightning strikes. Given their propensity to fail and to have decreased performance over time, it is important to be able to identify and monitor their...

WireWorld 3D Screensaver - Look into a hunk of electric wires. Attention! All the wires under high voltage!!! Platforms: Windows

Hardware sensors monitor utilizes sensor chips on smart motherboards to track system and CPU temperatures, voltages and cooling fans. Also, program monitors most graphics cards GPU temperature and HDDs S.M.A.R.T. attributes. By quickly catching an overheated computer, you can prevent... Platforms: Windows

Number one handheld computer calculator for the electrical industry. Tells electrical voltage drop over distance, both for AWG and metric cables. Conduit sizing Circuit Breaker selection Grounding Conductors NEMA Starters/Horsepower Find cost to run lights and equipment per day, week, month and... Platforms: Palm OS

SES shows you step by step how to solve any Sudoku. It explains precisely why each digit is written. You will have access to an incredible method to fill all the grids, even most difficult. This method is realy new and original. It does not have been copied in a book or on the web. - It is... Platforms: Windows, Windows CE

DiskCheckup measures the performance and 'health' of your S.M.A.R.T. (Self-Monitoring, Analysis, Reporting Technology) enabled hard disk drive. It compares current hard disk drive (HDD) attributes to the TEC (Threshold Exceed Condition) values determined by the manufacturer of the HDD. It can... Platforms: Windows

These tutorials explain their subjects clearly, simply, and briefly, and yet completely enough to be useful. They cover both the underlying concepts and the practical details, to give a solid understanding that you can apply to immediate needs. Although they're concise and use simple words, they... Platforms: Windows

Monitor Test Screens - Eight different testmodes, some with submodes, test your monitor for sharpness, moiri??, geometry, convergence, high voltage supply stability, brightness, color quality and more. Adjusts to any given resolution (even odd ones, like 1280x1024). Comes with a tutorial text.... Platforms: Windows

Presentation Assistant is a cute tool which helps in screen presentation, education, demonstration, explaining, and internal meeting at work or if you just need to explain someone something on your computer. Presentation Assistant provides various tools to bring the audience's attention to... Platforms: Windows

GNOME Panel Applet can display system temperatures, fan speeds and voltage readings from hardware sensors under Linux. Supported interfaces: - ACPI thermal zones, via the Linux kernel ACPI modules - Linux kernel i2c modules (for kernel 2.6). - lm_sensors and i2c packages (for kernel 2.4) -... Platforms: *nix

TCFS project is a cryptographic network file system featuring group sharing of encrypted files. TCFS will encrypt your files before sending them to the file server and will decrypt them before they are read by the requesting application. Because the encryption/decryption process takes place on... Platforms: *nix

Fedora Multimedia Installation HOWTO will explain how to get various multimedia apps working under Fedora Core. How to get various proprietary and restricted multimedia Damned Things (AVI, Flash, Java, MP3, MPEG, QuickTime, RealMedia, Windows Media) working under Fedora Core using your normal... Platforms: *nix

hardmon project can monitor hardware indicators for temperature, voltage, fan speed etc... of a running system with a graphical panel. The default configuration allows to monitor up to 3 temperatures, 3 fan speeds and 6 voltages. This tool is more particularly adequate for bi-processor systems.... Platforms: *nix

BlockSSHD is a Perl script based on BruteForceBlocker v1.2.3 that dynamically adds IPTables rules for Linux and pf firewall rules for BSD that block SSH brute force attacks. It can also detect ProFTPd login failures. BlockSSHD checks a log file you specify, for example /var/log/secure on a Red... Platforms: *nix