Generally the heavier an element the easier it is to split its atom (fission). The mass of the fragments is less than that of the original atom and the lost mass is converted into energy (E=mc^2). The fission also releases more slow neutrons which go on to provide the chain reaction.
GoPro to start manufacturing in Brazil. Local production of the action cameras could lower prices by up to 30 percent. Wearable video camera maker GoPro will start manufacturing its products in Brazil to lower prices and widen its local footprint. Raspberry Pi add-ons: My experiments with camera and wi-fi.
It is now manufactured in France and China by Meccano S.N. of France, part of the Canadian Spin Master toy company. In the United States, a competitive toy with a similar play pattern was launched in 1913 under the Erector Set brand. Erector was purchased by the Meccano company in 2000 and continued to be sold under Erector Sets in the US through early 2015.