Month: May 2019

Tiny self-propelling submarines could help clean up toxic waste


Submarines ‘re going microscopic. Tiny tubes about 10 micrometres long can propel themselves only using sunlight and will be steered by magnetic fields. These microrobots could possibly be useful for cleaning up toxic waste. Most swimming microrobots can only move in two dimensions: according to their weight, they either sink to underneath of a liquid…

Bitcoin rival Chia ‘destroyed’ hard disc supply chains, says its boss


Chia, a cryptocurrency designed to be a “green” alternative to bitcoin has instead caused a worldwide shortage of hard discs. Gene Hoffman, the president of Chia Network, the business behind the currency, admits that “we’ve sort of destroyed the short-term supply chain”, but he denies it’ll become an environmental drain. Bitcoin requires so-called miners to…