The body mass index (BMI) is calculated from weight and height measurements using the formula BMI = weight (in kg) divided by height (in m -2). The BMI was first introduced by Quetlet in order to eliminate the confounding effects of height on weight.
Share this item with your network: A smartphone is a cellular telephone with an integrated computer and other features not originally associated with telephones, such as an operating system, Web browsing and the ability to run software applications.
The word telephone comes from two Greek words, tele, meaning distant, and phone, meaning sound. Thus, a telephone is a device for carrying sounds over long distances. Many children are familiar with toy telephones that can be made with two tin cans joined by a taunt string or thin wire.