

worldbiodiversityforum.org1h ago






Researchers at Xiamen University in China have demonstrated that correlated photon pairs, essential for quantum optics experiments, can be generated using sunlight as the pump source for spontaneous parametric down-conversion in a nonlinear crystal. This breakthrough eliminates t
Conservationists are concerned that climate change and increased accessibility to the Weddell Sea could threaten the wreck of Shackleton's Endurance, which was discovered in 2022 largely intact after being crushed by ice in 1915. As warming temperatures reduce pack ice, explorati











