Ads
related to: class 9 exercise 9.3 solutions free printable practice ekg strips
Search results
Results From The WOW.Com Content Network
Dutch physiologist Willem Einthoven developed the string galvanometer in the early 20th century, publishing the first registration of its use to record an electrocardiogram in a Festschrift book in 1902. The first human electrocardiogram was recorded in 1887, however only in 1901 was a quantifiable result obtained from the string galvanometer.
A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form.Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines.
Fluorescent lamp tubes are often straight and range in length from about 100 millimeters (3.9 in) for miniature lamps, to 2.43 meters (8.0 ft) for high-output lamps. Some lamps have a circular tube, used for table lamps or other places where a more compact light source is desired.
Drowning is a type of suffocation induced by the submersion of the mouth and nose in a liquid. Submersion injury refers to both drowning and near-miss incident. Most instances of fatal drowning occur alone or in situations where others present are either unaware of the victim's situation or unable to offer assistance.
James Dobson was born to Myrtle Georgia (née Dillingham) and James C. Dobson Sr. on April 21, 1936, in Shreveport, Louisiana. [8] [9] From his earliest childhood, religion played a central part in his life.