Generally, materials will degrade over time due to fatigue, environmental conditions, or damage incurred during operation. Repair of certain materials during their lifecycle (especially those with structural functions such as concrete) can be very expensive and labour intensive.  Therefore Scientists began developing self-healing materials ,  those artificial (synthetic) substances that …

Modern terrorist attacks display increasingly sophisticated ICT skills in both conducting their attacks and communicating them globally through digital technologies, combined with, in some cases, an awareness of counter-intelligence measures, largely enabled by Web 2.0. The Paris attackers displayed the most sophisticated use of these, including so-called Dark Web platforms …