Yahoo Style UK10 小时
Gardening expert Monty Don issues urgent warning to anyone with garden paving stones
When this is done brush in sharpsand. If the path is brick or stone the porous surface will absorb some of the sand." However ...
techxplore17 小时
Harnessing corrosion: Scientists transform dealloying into sustainable lightweight alloy design
Max Planck Institute for Sustainable Materials (MPI-SusMat) researchers have transformed dealloying—traditionally seen as a ...