Internet

Social media platforms face a reckoning over hate speech

For years, social media platforms have fueled political polarization and hosted an explosion of hate speech. Now, with four months until the U.S. presidential election and the country's divisions reaching a boiling point, ...

Engineering

Sun-soaking device turns water into superheated steam

MIT engineers have built a device that soaks up enough heat from the sun to boil water and produce "superheated" steam hotter than 100 degrees Celsius, without any expensive optics.