Hong Kong is expected to confirm on Friday it plunged into recession for the first time in a decade, amid concerns the economy could be in even worse shape than feared as months of anti-government protests take a heavy toll.
Anti-government protesters paralyzed parts of Hong Kong for a fifth day on Friday, forcing schools to close and blocking some major highways, as university students barricaded campuses and authorities struggled to calm the violence.
The Hong Kong government condemned on Friday an attack by a "violent mob" on the city's justice secretary in London, the first direct altercation between demonstrators and a government minister during months of often violent protests.
The world of aerospace increasingly relies on carbon fiber reinforced polymer composites to build the structures of satellites, rockets and jet aircraft. But the life of those materials is limited by how they handle heat. Engineers are now developing a design for a heat shield that better protects those extremely fast machines.