2 Matching Annotations
  1. Aug 2023
    1. According to the International   Hydropower Association, or IHA, a  facility with two reservoirs roughly   the size of two Olympic swimming pools, and  a 500-metre height difference between them,   would have an energy capacity of about three and  a half megawatt hours. And they last for decades,
      • for: pumped hydro storage capacity, pumped hydro, PSH
      • paraphrase
        • According to the International Hydropower Association, or IHA,
          • a facility with:
            • two reservoirs roughly the size of two Olympic swimming pools,
            • a 500-metre height difference between them,
          • would have
            • an energy capacity of about three and a half megawatt hours and
            • they last for decades,
  2. Sep 2018
    1. A radar station is of course less simple than a weather vane. To be sure, the construction of a high-frequency apparatus requires the interlocking of various processes of technical-industrial production. And certainly a sawmill in a secluded valley of the Black Forest is a primitive means compared with the hydroelectric plant on the Rhine River.

      Heidegger notes that the disparity between two alike objects (simliar in function) from the technological time gap between them. For example, he states "A radar station is of course less simple than a weather vane," inferring to the huge technological gap between the two alike metrological instruments. More importantly, he states that that in order for the construction of a radar station, technological developments and production must mesh together. He maintains that a sawmill and hydroelectric plant are different technologically, but their purpose to generate hydropower via a large turbine influenced by water current is virtually unchanged throughout the centuries.