Cement is created by a complex process involving multiple ingredients, testing is therefore essential to ensure compliance with specification and application requirements. Alfonso Rivera, Technical Department and Field Service Manager for materials testing ELE International, UK, reports.
On 26 September 1944, a first sustained nuclear chain reaction at a new reactor began. Its purpose was not to prove whether fission could be achieved or sustained, but to explore its weaponised potential. Khai Trung Le looks at Hanford B, the world’s first full-scale nuclear reactor.