Rock Dust CO2 Absorption

A nation by nation assessment published in Nature shows that adding crushed rock (finely crushed basalt) to farmland could absorb up to two billion tonnes of carbon dioxide from the air per year. The technique is called enhanced rock weathering and by-products of iron and stell manufacturing, and construction, could be processed to produce the rock dust needed.  (H/T to Jenn for sharing this.)

COVID-19 Detection Through Speech

Researchers MIT's Lincoln Laboratory have identified a way to recognise COVID-19 in asymptomatic people by analysing their speech patterns. The theory that the constriction of muscles caused by a COVID-19 infection could affect speech in otherwise asymptomatic people was put to the test by analysing speech from video interviews of asymptomatic celebrities before and after their postive diagnosis.

Water Filled Glass Windows

Dr. Matyas Gutai of Loughborough University has developed and tested a new energy efficient building option, Water Filled Glass (WFG) windows. The WFG system holds water between layers of glass windows, allowing the sun to heat the water, providing insulation and sound proofing. The hot water is then pumped out, replaced, and stored in a water tank. When the temperature drops, the hot water is circulated around pipes to heat the building.

Marianna Mazzucato on State Investment

Wired published a great profile piece on Marianna Mazzucato, the economist who advises governments on how to encourage innovation through state investment. By tracking back current technologies to their state investment beginnings, her argument proves that innovation comes from ambitious moonshot projects backed by state investment rather than private companies, which may just help us solve the many challenges to come.

Eavesdropping By Watching A Lightbulb

Researchers at Ben Gurion University have demonstrated that sound in a room can be reproduced by watching a lightbulb in that room, from up to 82ft away. The technology, named Lamphone, detects vibrations on the light bulb caused by the sound in the room and process these vibrations to recreate the sound. The resultant audio is good enough for Shazam to recognise a song that was played in the room.


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