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Boundary: Bleed area may not be visible.
by Science Source
$17.00
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Product Details
The Center for Disease Control has recommended the use of cloth face masks to help fight the spread of COVID-19.
This face mask is made from 100% polyester and includes two ear loops with adjustable grommets for a comfortable fit.
The printed area of the mask is approximately 7" wide by 5" tall. This mask fits well on adult mens' faces without the grommets but, due to the adjustable grommets, can be worn snuggly by adult women, as well.
Please note - this is NOT a surgical grade mask. It is not intended for any medical or commercial uses, whatsoever. It is a simple, cloth mask designed for everyday use to cover your mouth when out in public. The mask should not be used in any medical or surgical setting.
We make no warranties that the mask prevents infections or the transmission of viruses or diseases.
Design Details
Hipparchus in his observatory in Alexandria. Hipparchus (190-120 BC), was an ancient Greek astronomer, geographer, and mathematician. A methodical... more
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Hipparchus in his observatory in Alexandria. Hipparchus (190-120 BC), was an ancient Greek astronomer, geographer, and mathematician. A methodical observer, Hipparchus compiled the first known star catalogue, listing some 850 stars, as well as their celestial coordinates and magnitude. He was the first whose quantitative and accurate models for the motion of the Sun and Moon survive. He developed trigonometry and constructed trigonometric tables, and he solved several problems of spherical trigonometry. His other reputed achievements include the discovery of Earth's precession and possibly the invention of the astrolabe and the armillary sphere.
$17.00
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