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
This animation maps 222 transfers of land to the U.S. government from the Native American nations that controlled the large tract commonly known as the Louisiana Territory. The transfers, or cessions, were made between 1803 and 1970.