The system, according to the researchers, makes spoofing the unique document fingerprints extremely difficult, if not impossible currently, because there is no way to replicate the surface structures artificially.

BBC: NEWS | Technology | Laser spots paper 'fingerprints'

Many of them question whether cultural phenomena, including destruction layers, cultural-piercing features (man-made structures displaced by surface rupturing, e.g. viaducts), structural damage to buildings, indications of repairs, historical accounts and myths can be reliably used as earthquake indicators.

UNESCO: Tales set in Stone: learning from ancient earthquakes

The output is then relayed into a 1.4 mm thick plastic waveguide lens with input and output hologram structures on the surface which squeezes the light down the waveguide and then two dimensionally expands the image back into the user's eye, creating an image that is then mixed into the real world.

ENGADGET: Vuzix designs Smart Glasses to look like sunshades, tout connected transparent display

Scientists are fascinated by the blister-like structures on Europa's rough surface.

CNN: Galileo moves on to Europa

They give up, he says, and in the process form nearly defect-free structures that exhibit incredible bonds with the surface of the metal.

FORBES: Steely Dan

This may be achieved by increasing the surface reflectivity of the planet, for example by brightening human structures, planting crops with a higher albedo, or covering deserts with reflective material.

FORBES: Green Groups Blast U.N. Climate Panel for Alarmism