In some embodiments, a device may include a tube having substantially cylindrical body defining an enclosure and having an open end. The tube may include measurement units printed along at least one side. The device may further include a stopper element releasably coupled to the open end of the cylindrical body and configured to selectively engage a needle to mark a length of the needle.

Methods and apparatus to count people are disclosed. Example people counting apparatus disclosed herein include a difference calculator to calculate a degree of similarity between a first characteristic dataset and a second characteristic dataset representative of face detections in images. Disclosed example people counting apparatus also include a limiter to store the first characteristic dataset and the second characteristic dataset in a plurality of characteristic datasets associated when the degree of similarity does not satisfy a threshold, and to store the first characteristic dataset in the plurality of characteristic datasets and discard the second characteristic dataset when the degree of similarity satisfies the threshold to limit a number of stored characteristic datasets. Disclosed example people counting apparatus further include a comparator to compare the plurality of characteristic datasets to each other to determine a number of unique faces in an environment during a first period of time.

Methods and apparatus to count people are disclosed. Example people counting apparatus disclosed herein include a difference calculator to calculate a degree of similarity between a first characteristic dataset and a second characteristic dataset representative of face detections in images. Disclosed example people counting apparatus also include a limiter to store the first characteristic dataset and the second characteristic dataset in a plurality of characteristic datasets associated when the degree of similarity does not satisfy a threshold, and to store the first characteristic dataset in the plurality of characteristic datasets and discard the second characteristic dataset when the degree of similarity satisfies the threshold to limit a number of stored characteristic datasets. Disclosed example people counting apparatus further include a comparator to compare the plurality of characteristic datasets to each other to determine a number of unique faces in an environment during a first period of time.

The present disclosure relates to tools, kits, and methods for adjusting artificial eyelashes. The tool includes a body portion, a flange coupled to the body portion, and a plurality of indicia on the flange for measuring a lateral length of an individual's eyelashes.

In some embodiments, a device may include a tube having substantially cylindrical body defining an enclosure and having an open end. The tube may include measurement units printed along at least one side. The device may further include a stopper element releasably coupled to the open end of the cylindrical body and configured to selectively engage a needle to mark a length of the needle.

A roof square for marking rafters comprising a right angle triangular body with a marking blade pivotally mounted adjacent the right angle. Either side of the square adjacent the right angle is held against the stock to be marked, and the blade used to mark either a plumb cut or a foot cut. The blade retracts to allow marks to be made at a measured depth. The tool can also be used as a conventional square to make 90 and 45 degree marks.

A tape measure including a housing configured to receive a flexible tape, a spring mechanism configured to allow extraction of at least a portion of the tape from the housing and retraction of the tape into the housing, a first fractional indicia along a first edge on a first side of the tape, and a first scale indicia along a second edge on the first side of the tape, wherein the first scale indica extends at least about 36 inches along the second edge from a 0 point of the tape.

In a scale constituted by a plurality of scale lines, to provide such a scale capable of easily reading scale values. In a scale main body having a predetermined size and a plurality of scale lines formed thereon, temporary numbers are put one by one from 0 in an ascending order on the respective scale lines formed at each scale value interval desirably determined, with the scale line defined as 0 in the scale value being set as a starting point, and display methods between the scale line with the numeral 2, 3, 7 or 8 set at the lowermost position of the temporary number and the scale line with the numeral 1, 4, 6 or 9 set at the lowermost position of the temporary number are made different.

Methods and apparatus to count people are disclosed. Example people counting apparatus disclosed herein include a difference calculator to calculate a degree of similarity between a first characteristic dataset and a second characteristic dataset representative of face detections in images. Disclosed example people counting apparatus also include a limiter to store the first characteristic dataset and the second characteristic dataset in a plurality of characteristic datasets associated when the degree of similarity does not satisfy a threshold, and to store the first characteristic dataset in the plurality of characteristic datasets and discard the second characteristic dataset when the degree of similarity satisfies the threshold to limit a number of stored characteristic datasets. Disclosed example people counting apparatus further include a comparator to compare the plurality of characteristic datasets to each other to determine a number of unique faces in an environment during a first period of time.

In a scale constituted by a plurality of scale lines, to provide such a scale capable of easily reading scale values. In a scale main body having a predetermined size and a plurality of scale lines formed thereon, temporary numbers are put one by one from 0 in an ascending order on the respective scale lines formed at each scale value interval desirably determined, with the scale line defined as 0 in the scale value being set as a starting point, and display methods between the scale line with the numeral 2, 3, 7 or 8 set at the lowermost position of the temporary number and the scale line with the numeral 1, 4, 6 or 9 set at the lowermost position of the temporary number are made different.