The word “plumber” dates back to the Roman Empire. In Roman times lead was known as plumbum in Latin which is why the periodic table of the elements uses the symbol ‘Pb’ for lead. Lead was used for Roman roof conduits and drain pipes, as well as for piping and making baths. Thus a person […]
Tag: health
Play it Safe in the Sun
(Article courtesy of KnowledgeHouse.info and ArizonaEdventures.com) Sunshine on your shoulders may make you happy, but it can also give you a sunburn. And did you know that it can bring other risks that go beyond sunburn? Even though sunlight is essential for all life on Earth, repeated exposure to the sun is a major factor […]