Search results
Results From The WOW.Com Content Network
Thermoluminescence from heating chlorophane specimens on a hotplate. Triboluminescence from rubbing together two quartz crystals.. First, it will be useful to introduce some mineralogical terminology for gemstones that can glow when exposed to light, friction, or heat.
A Dark Room is an open-source text-based role-playing game.It was originally published for web browsers by Canadian indie studio Doublespeak Games on June 10, 2013. Later that year, it was released in the App Store for iOS devices.
In 2001: A Space Odyssey, Arthur C. Clarke uses the term "Star Gate" for the large monolith "sentinel" TMA-2, which is a classic stargate portal to another part of the universe. [ 3 ] The basic stargate concept is that it has at least two devices in distant positions, and when active, the rings of each become similar to a physical, singular ...
Portal stones are a pair of Megalithic orthostats, usually flanking the entrance to a chamber tomb or opposite the axial stone of an axial stone circle. They are commonly found in dolmens. Examples may be seen at Bohonagh and Knocknakilla. A trilithon at Stonehenge
Portal is a 2007 puzzle-platform game developed and published by Valve.It was originally released in a bundle, The Orange Box, for Windows, Xbox 360 and PlayStation 3, and has been since ported to other systems, including Mac OS X, Linux, Android (via Nvidia Shield), and Nintendo Switch.
Schistostega pennata is found in China, Japan, Siberia, Europe, and North America. [7]It is easily outcompeted by other mosses and plant species in open, brighter areas, but its ability to concentrate the available light allows it to grow in shady places where other plants cannot survive.
Chrysoprase, chrysophrase or chrysoprasus is a gemstone variety of chalcedony (a cryptocrystalline form of silica) that contains small quantities of nickel.Its color is normally apple-green, but varies from turquoise-like cyan to deep green.
The portal stones are positioned at either side of the lower side of the capstone, marking the tomb's entrance. A threshold stone (or sill) stone lies transverse on an east-west crevice in front of them. [6] The cairn extends an average of 3 m (9.8 ft) from the chamber. [11]