Volt-Ampere and Watts are power measurement units. Volt-ampere is used to measure the total power that is being consumed by a device. Watts is used to power the device so it can perform its useful work. The product of voltage and current in an AC (alternating current) circuit is known ... Read More

SMS and IM are messaging services that are used to communicate through mobile devices or computers. Short Message Service (SMS) is used to send small messages from one phone to another. IM messaging services are used to send messages from one computer to another computer through the internet. Read this ... Read More

Single-action and double-action guns are the firing mechanisms of firearms. For each shot, the shooter of single-action weapons must manually cock the hammer. The trigger pull is light, and the amount of force needed to fire the gun is negligible when the hammer is cocked. Double-action guns are made to ... Read More

Quartz watch movements are powered by a battery, while automated watch movements are powered by a complex system of gears, springs, and other mechanical components used to keep time. Read this article to find out more about Quartz and Automated Movement in Watches and how they are different from each ... Read More

mAh (milliampere-hours) refers to a battery's capacity, or the amount of energy it can store and deliver. NiMH (nickel-metal hydride) refers to the chemical composition of the battery. Read this article to find out more about NiMH and mAH batteries and how they are different from each other. What are ... Read More

MRI and fMRI are used to produce images of the body using magnetic fields and radio waves. MRI creates structural images of the body. where fMRI creates functional images of the brain. The manner in which they are used is another difference. While fMRI is largely used for research, MRI ... Read More

An oven uses gas or electricity to heat the food. Induction cooktops, on the other hand, use magnetic energy to warm the cookware and the food that is inside. The primary distinction between the oven and induction cooktop is the process they use to heat the food. The induction cooktop ... Read More

Chain drive and belt drive are the common methods for transmitting power between two spinning shafts in various mechanical systems. Both of these drives are commonly used in applications including autos, industrial machinery, and agricultural equipment to transfer power from one place to another. Belt drive uses pulleys and a ... Read More

Caviar Blue and Caviar Black are the two most popular hard drive models that are developed by Western Digital Corporation. Caviar Blue is an affordable storage option for desktop PCs in the home and office that is made for regular usage. Using a SATA III interface, it can transport ... Read More

A battery charger is used to recharge a battery when it is deeply or entirely discharged. A battery maintainer keeps the battery fully charged and prepared for usage by trickling in a small amount of charge on a regular basis. The amount of current they supply is one of the ... Read More