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Sensodyne is a brand of toothpaste that was first sold by Block Drug, a Brooklyn, New York-based company established in 1907 by pharmacist Alexander Block. [1] By 1925, manufacturing dental care products had become the company's focus. Leonard N. Block followed his father into the family business which relocated to Jersey City, New Jersey, in 1938.
Over the course of its five revisions (the final two co-authored with her daughter Ruth Kenyon Russell) her advice moved from emphasizing rigid schedules to encouraging "on-demand" scheduling based on the child. [4] The child's healthy emotional development was emphasized, as was the importance of the pre- and postnatal health of the mother. [4 ...
Experimenting with Babies: 50 Amazing Science Projects You Can Perform on Your Kid is a 2013 non-fiction book written by Shaun Gallagher and illustrated by Colin Hayes. The book provides a series of home-based experiments that can be performed on infants aged birth to two years to test their cognitive, motor, social and behavioural development.
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[21] [23] It is believed to be the first Google Easter egg, [4] predating the calculator in which it is now revealed. "the number of horns on a unicorn" shows the number "1" on the calculator. [122] "what is the loneliest number" shows the number "1" in the calculator. [123]
Side effects may include slow heart rate and low oxygen levels. [1] Its use is also linked with intracranial bleeding. [1] Pulmonary surfactant may be isolated from the lungs of cows or pigs or made artificially. [1] [3] [4] Pulmonary surfactant was discovered in the 1950s and a manufactured version was approved for medical use in the United ...
The estimated date of delivery (EDD), also known as expected date of confinement, [1] and estimated due date or simply due date, is a term describing the estimated delivery date for a pregnant woman. [2] Normal pregnancies last between 38 and 42 weeks. [3] Children are delivered on their expected due date about 4% of the time. [4]
The American Invitational Mathematics Examination (AIME) is a selective and prestigious 15-question 3-hour test given since 1983 to those who rank in the top 5% on the AMC 12 high school mathematics examination (formerly known as the AHSME), and starting in 2010, those who rank in the top 2.5% on the AMC 10.