86
100
Aug 23, 2019 · The best search engines for privacy are: DuckDuckGo StartPage
  • Safe
  • United States
  • Encrypted
  • 11 yrs old
  • 9,882 Site Rank
  • Report Card

77
100
Jan 03, 2022 · This search engine will help you win debates. Google Scholar focuses on scientific and hard-research academic material that has been subjected to scrutiny by scientists and scholars. Example content includes graduate theses, legal and court opinions, scholarly publications, medical research reports, physics research papers, and economics and ...
  • Safe
  • United States
  • Encrypted
  • 25 yrs old
  • 1,514 Site Rank
  • Report Card

See more
Engine
An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power generation), heat energy (e.g. geothermal), chemical energy, electric potential and nuclear energy (from nuclear fission or nuclear fusion). Many of these processes generate heat as an intermediate energy form, so heat engines have special importance. Some natural processes, such as atmospheric convection cells convert environmental heat into motion (e.g. in the form of rising air currents). Mechanical energy is of particular importance in transportation, but also plays a role in many industrial processes such as cutting, grinding, crushing, and mixing.... Read more