Nanoparticles also have different properties to the same substance in normal-sized pieces. For example, titanium dioxide is a white solid used in house paint and certain sweet-coated chocolates. Titanium dioxide nanoparticles are so small they do not reflect visible light, so cannot be seen.
legal Definition of cession 1: an act of ceding : a yielding (as of property) to another: as a in the civil law of Louisiana: assignment or transfer of property rights by a debtor to a creditor
The 1867 Treaty of Cession, in which the United States purchased Alaska from the Russian empire, marked an unusually peaceful transition. The purchase of Alaska was done under amicable circumstances, and both Russia and the U.S. felt they gained from the Treaty.