The Method of Loci has been used since ancient times to memorize important information.
The NE-PER Nuclear and Cytoplasmic Extraction Reagent Kit is a reagent-based protocol that enables the stepwise lysis of cells, separation of the cytoplasm from the intact nuclei and then extraction of nuclear proteins away from genomic DNA and mRNA.
Two types of nuclear reactions are used in nuclear weapons. The nuclei of some heavy elements like uranium or plutonium can split into two roughly equal sized nuclei with the release of energy. Such a process is known as nuclear fission.