Pressure cooker bombs have long been used in places such as Afghanistan and Pakistan because they are cheap, easy to build and inconspicuous. They... They are cheap, easy to build and inconspicuous.

A lot of the solar technology that hits the news tends to be a bit on the high-tech side, such as photovoltaic and concentrating solar power devices, but taking advantage of free energy from the sun ...

In the wake of the bombings in New York and New Jersey, the pro-Islamic State (ISIS) hacking entity Cyber Kahilafah posted new and potentially more deadly tutorials on building pressure cookers bombs ...

use the invention process to design, build, and test a solar cooker. describe how transmission, absorption, and reflection are used in a solar cooker to heat water. evaluate what variables contribute ...