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Due to its status as a user-created games platform, Roblox has a variety of popular games. As of May 2020, the most popular games on Roblox had over 10 million monthly active players each. As of August 2020, at least 20 games had been played more than one billion times, and at least 5,000 have been played more than one million times. [119]
By 1970, a calculator could be made using just a few chips of low power consumption, allowing portable models powered from rechargeable batteries. The first handheld calculator was a 1967 prototype called Cal Tech, whose development was led by Jack Kilby at Texas Instruments in a research project to produce a portable calculator. It could add ...
Blockchain analysts estimate that Nakamoto had mined about one million bitcoins [21] before disappearing in 2010 when he handed the network alert key and control of the code repository over to Gavin Andresen. Andresen later became lead developer at the Bitcoin Foundation, [22] [23] an organization founded in September 2012 to promote bitcoin. [24]
The levelized cost of electricity (LCOE) from a new nuclear power plant is estimated to be 69 USD/MWh, according to an analysis by the International Energy Agency and the OECD Nuclear Energy Agency. This represents the median cost estimate for an nth-of-a-kind nuclear power plant to be completed in 2025, at a discount rate of 7%.
In 2002 production rose to nearly 3.25 million and then jumped to 4.44 million in 2003, 5.07 million in 2004, 5.71 million in 2005, 7.28 million in 2006, 8.88 million in 2007, 9.35 million in 2008 and 13.83 million in 2009. China has become the number-one automaker in the world as of 2009. Domestic sales have kept pace with production.
The global stock reached 5.3 million light-duty plug-in vehicles in December 2018. [9] [134] By the end of 2019 the stock of light-duty plug-in vehicles totaled 7.55 million units, consisting of 4.79 million all-electric cars, 2.38 million plug-in hybrid cars, and 377,970 electric light commercial vehicles.