Better Homes and Gardens on MSN2 天
Are Eggshells Good for Plants? An Expert Says Yes, If You Do One Thing First
To use eggshells for plants as a nutrient boost, just crumbling them up isn't enough, according to a plant care expert.While ...
C&EN4 年
The Fate of Calcium Carbonate
In this activity, you can use a common liquid to detect calcium carbonate! Cover your work surface with newspaper or paper towels. Place some egg shell and an antacid tablet on your work surface. Use ...
Royal Society of Chemistry5 年
Chemistry in its element: calcium
Which is what the old milk TV adverts were trying to tell us after all. Calcium is used to produce the minerals contained in bones, shells and teeth through a process called biomineralisation. Calcium ...
EurekAlert!3 年
Varied Structure for Added Strength (IMAGE)
A heavily enlarged 3-D print of the sea urchin shell in cross section reveals the secret to the immense strength of the calcium shell of the sea creature. Dirk Müter, Assistant Professor at ...
University of Manchester6 个月
Strength is shore thing for sea shell scientists
Dr Stephen Eichhorn from The School of Materials at The University of Manchester, said: “The mechanical properties of shells can rival those of man-made ceramics, which are engineered at high ...