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One of the highest-quality examples of Easter Island stone masonry is the rear wall of the ahu at Vinapu. Made without mortar by shaping hard basalt rocks of up to 7,000 kg (6.9 long tons; 7.7 short tons) to match each other exactly, it has a superficial similarity to some Inca stone walls in South America. [135]
The city must reduce run-off by 44,000 pounds (20,000 kg) of nitrogen and 13,000 pounds (5,900 kg) of phosphorus. ... In 1964 the schools were integrated and Stone ...
Codelco, a major producer in Chile, reported that in 2020 the company emitted 2.8 t CO 2-eq per ton (2.8 kg CO 2-eq per kg) of fine copper. [52] Greenhouse gas emissions primarily arise from electricity consumed by the company, especially when sourced from fossil fuels, and from engines required for copper extraction and refinement.
It is powered by a 3.8 L twin-turbocharged flat-6 engine generating a maximum power of 700 PS (515 kW; 690 hp) at 7,000 rpm and 750 N⋅m (553 lb⋅ft) of torque, giving the car a power to weight ratio of 2.1 kg (4.63 lb) per horsepower and making it the most powerful 911 ever built. A Weissach package option is available.
Iron catalysts are traditionally used in the Haber–Bosch process for the production of ammonia and the Fischer–Tropsch process for conversion of carbon monoxide to hydrocarbons for fuels and lubricants. [143] Powdered iron in an acidic medium is used in the Bechamp reduction, the conversion of nitrobenzene to aniline. [144]
The area that is now Finland was settled in, at the latest, around 8,500 BC during the Stone Age towards the end of the last glacial period. The artefacts the first settlers left behind present characteristics that are shared with those found in Estonia, Russia, and Norway. [24] The earliest people were hunter-gatherers, using stone tools. [25]
Zinc pennies pose a risk of zinc toxicosis, which can be fatal. One reported case of chronic ingestion of 425 pennies (over 1 kg of zinc) resulted in death due to gastrointestinal bacterial and fungal sepsis. Another patient who ingested 12 grams of zinc showed only lethargy and ataxia (gross lack of coordination of muscle movements). [252]
Other conversion of cardiac rhythm ( 99.7 ) Therapeutic apheresis or other injection, administration, or infusion of other therapeutic or prophylactic substance ( 99.8 ) Miscellaneous physical procedures