Business Insider8y
Pen cap holes prevents choking and leaking
Produced by Emma Fierberg. Original Reporting by Jessica Orwig. Follow BI Video: On Twitter More from Science Pen caps have a small hole to prevent choking if swallowed and to equalize the ...
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Scientist Pens Science Adventure Book Series DR. K’S PORTAL THROUGH TIME, Introducing ...
Designed to be educational, teaching young readers about significant scientific discoveries and the lives of famous scientists, the series is a unique fusion of adventure, history, and science.
Business Insider8y
Pen cap holes prevents choking, leaking
Produced by Emma Fierberg. Original Reporting by Jessica Orwig. Follow BI Video: On Twitter More from Science Pen caps have a small hole to prevent choking if swallowed and to equalize the ...