This $10 Mouthwash Gave Reviewers ‘Noticeably Whiter Teeth And Fresher Breath’ After Just Weeks

If Crest Whitestrips feel too harsh, expensive or time-consuming, here’s a simpler alternative: A $10 mouthwash that just ...
Nature

Natural Radiocarbon Activity of the Dissolved Organic Carbon in the North-east Pacific Ocean

THE “age” of the dissolved organic matter in the deep sea relative to its origin in the euphotic zone has been, a matter of conjecture for some time 1–3. Photosynthetic fixation of carbon dioxide into ...