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In 2019, his posts were censured by Microsoft, who subsequently removed mentions of his name from Minecraft (excluding one instance in the game's end credits) and did not invite him to the game's tenth anniversary celebration. In 2015, he co-founded a separate game studio called Rubberbrain, which was relaunched in 2024 as Bitshift Entertainment.
Kelp forests are underwater ... (for example, copper ... secured $4.5 million in U.S. government funding to grow giant kelp on an 86-acre farm off the coast ...
Reconstruction of Ötzi's copper axe (c. 3300 BCE). The Copper Age, also called the Eneolithic or the Chalcolithic Age, has been traditionally understood as a transitional period between the Neolithic and the Bronze Age, in which a gradual introduction of the metal (native copper) took place, while stone was still the main resource utilized.
An alternative offset would be to cultivate kelp forests. Kelp can grow at 2 feet per day, 30 times faster than terrestrial plants. Planting kelp across 10% of the oceans (4.5 x the area of Australia) could provide the same offset. Additionally, the kelp would support a fish harvest of 2 megatons per year and reduce ocean acidification. Large ...
Kelp have had to adapt dispersal methods that can make successful use of ocean currents. Buoyancy of certain kelp structures allows for species to disperse with the flow of water. [21] Certain kelp form kelp rafts, which can travel great distances away from the source population and colonize other areas.
Combining copper with tin and/or arsenic in the right proportions produces bronze, an alloy that is significantly harder than copper. The first copper/arsenic bronzes date from 4200 BC from Asia Minor. The Inca bronze alloys were also of this type. Arsenic is often an impurity in copper ores, so the discovery could have been made by accident.
Copper fittings for soldered plumbing joints A very large copper seal end cap. The major applications of copper are electrical wire (60%), roofing and plumbing (20%), and industrial machinery (15%). Copper is used mostly as a pure metal, but when greater hardness is required, it is put into such alloys as brass and bronze (5% of total use). [28]
The Copper Scroll is one of the Dead Sea Scrolls found in Cave 3 near Khirbet Qumran, but differs significantly from the others.Whereas the other scrolls are written on parchment or papyrus, this scroll is written on metal: copper mixed with about 1 percent tin, although no metallic copper remained in the strips; the action of the centuries had been to convert the metal into brittle oxide. [1]