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A mechanical pedometer obtained from France was introduced in the US by Thomas Jefferson. [11] It is not known if he modified the design; although this pedometer is widely attributed to Jefferson, [12] [13] proof is difficult to obtain as he did not apply for patents on any of his inventions. [14]
Fitness trackers are a more sophisticated version of the pedometer; in addition to counting steps, they contain additional sensors such as accelerometers and altimeters to collect or estimate measures including the speed and distance travelled, heart rate, calorie expenditure, or the duration and quality of sleep. [2]
Travel insurance is an insurance product for covering unforeseen losses incurred while travelling, either internationally or domestically. Basic policies generally only cover emergency medical expenses while overseas, while comprehensive policies typically include coverage for trip cancellation, lost luggage , flight delays , public liability ...
An accelerometer measures proper acceleration, which is the acceleration it experiences relative to freefall and is the acceleration felt by people and objects. [2] Put another way, at any point in spacetime the equivalence principle guarantees the existence of a local inertial frame, and an accelerometer measures the acceleration relative to that frame. [4]
Single- and multi-axis accelerometers detect the combined magnitude and direction of linear, rotational and gravitational acceleration. They can be used to provide limited motion sensing functionality. For example, a device with an accelerometer can detect rotation from vertical to horizontal state in a fixed location.
Fitbit is a line of wireless-enabled wearable technology, physical fitness monitors and activity trackers such as smartwatches, pedometers and monitors for heart rate, quality of sleep, and stairs climbed as well as related software. It operated as an American consumer electronics and fitness company from 2007 to 2021.
The world of high-end footwear has seen its fair share of jaw-dropping auctions, with some of the world’s most iconic sneakers selling for millions (yes, millions!) of dollars.
According to the Insurance Institute for Highway Safety, head injury risk is evaluated mainly on the basis of head injury criterion. A value of 700 is the maximum allowed under the provisions of the U.S. advanced airbag regulation (NHTSA, 2000) and is the maximum score for an "acceptable" IIHS rating for a particular vehicle.