Daily Current Affairs – 2020Topic: For Prelims and Mains
Three years ago researchers from the Indian Institute of Technology (IIT) Madras observed silver slowly dissolving in a glucose solution when heated to 70 degree C. Now, the team has demonstrated an environment-friendly strategy to degrade the chemically inert and physically stable plastic fluoropolymer — polytetrafluoroethylene (PTFE) of which Teflon is made.
Triboelectric degradation of PTFE, polypropylene and other polymers might be occurring in nature in large water bodies such as oceans where metal ions are found in abundance and waves provide constant agitation.
It is the world’s only floating nuclear power unit. The plant was launched by Russia on May 19, 2018 at the St Petersburg shipyard.
Recently, this floating nuclear power plant completed its 5,000-km journey along the Northern Sea Route. This has sparked fears among environmentalists over the safety of the Arctic region.
Aedes aegypti, the yellow fever mosquito, is a mosquito that can spread dengue fever, chikungunya, Zika fever, Mayaro and yellow fever viruses, and other disease agents. The mosquito can be recognized by white markings on its legs and a marking in the form of a lyre on the upper surface of its thorax.