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The beams can only be seen through night vision goggles. [9] Each beam can be zeroed independently, and the illuminator's radius is adjustable. The two lasers are tied into one 6-mode switch, which has the following modes:
Currently issued in the USMC, the AN/PEQ-16B helps to consolidate the number of attachments on the hand guards of infantry weapons, including the visible, and infrared lasers, an infrared illuminator, and a white-light illuminator for urban or dark environments where night vision devices may be impractical or not available.
Large lenses can gather and concentrate light, thus intensifying light with purely optical means and enabling the user to see better in the dark than with the naked eye alone. Often night glasses also have a fairly large exit pupil of 7 mm or more to let all gathered light into the user's eye.
When seen from below by a predator, the animal's light helps to match its brightness and colour to the sea surface above. Counter-illumination is a method of active camouflage seen in marine animals such as firefly squid and midshipman fish, and in military prototypes, producing light to match their backgrounds in both brightness and wavelength.
Fossilised skin pigmented with dark-coloured eumelanin reveals that ichthyosaurs, leatherback turtles and mosasaurs had dark backs and light bellies. [21] [22] The ornithischian dinosaur Psittacosaurus similarly appears to have been countershaded, implying that its predators detected their prey by deducing shape from shading. Modelling suggests ...
Most social media apps have added dark mode to make late-night browsing easier. While Instagram doesn’t have an in-app dark mode option, it syncs to your phone’s dark mode — you can read ...
Photophores on fish are used for attracting food or for camouflage from predators by counter-illumination. [ citation needed ] Photophores are found on some cephalopods including the firefly squid , which can create impressive light displays, as well as numerous other deep sea organisms, such as the pocket shark Mollisquama mississippiensis and ...
He says adult predators are obsessed with sexualizing children and even isolating them from their parents. “There’s a thing about ‘your parents don’t understand you’ and ‘get away from ...