A lantern.
When it's dark outside and light is on inside a building, the interior light creates a bright contrast that allows people outside to see in. However, the darkness outside limits the ability to see outward, as the light from the inside does not illuminate the outside environment. This difference in light levels makes it easier for those in the light to observe those in the dark, but not the other way around. Essentially, the lighting conditions favor visibility into the illuminated space rather than outwards.
If the solar light works inside in a dark room but not outside, it may be due to insufficient exposure to sunlight outdoors. Ensure the solar panel is placed in a spot that receives direct sunlight and is not obstructed by shadows or debris. Additionally, check the battery to see if it needs replacing as it may not be holding a charge for outdoor use.
It isn't.
Caves are dark because they are deep underground, away from sources of light. Light from the sun does not penetrate deep into the earth, so once you are inside a cave, there is no natural light source to illuminate it.
Light After Dark was created in 2008.
You match the rings with the bolts. Look carefully at the bolts, there is an inside and outside color... dark or light. If the bolt in the corresponding color is dark on the inside and dark on the outside, then tap the ring on the door until it looks the same as the bolt. Do this with all four bolt-ring combinations, and the doors will open. Just in case it is hard to tell: Upper left bolt is Dark-inside, Dark outside Upper right is Light-inside, Light outside Lower left is Light-inside, Dark outside Lower Right is Dark-inside, Light outside.
You match the rings with the bolts. Look carefully at the bolts, there is an inside and outside color... dark or light. If the bolt in the corresponding color is dark on the inside and dark on the outside, then tap the ring on the door until it looks the same as the bolt. Do this with all four bolt-ring combinations, and the doors will open. Just in case it is hard to tell: Upper left bolt is Dark-inside, Dark outside Upper right is Light-inside, Light outside Lower left is Light-inside, Dark outside Lower Right is Dark-inside, Light outside.
Jeans that are dark on the outside but light on the inside
When it's dark outside and light is on inside a building, the interior light creates a bright contrast that allows people outside to see in. However, the darkness outside limits the ability to see outward, as the light from the inside does not illuminate the outside environment. This difference in light levels makes it easier for those in the light to observe those in the dark, but not the other way around. Essentially, the lighting conditions favor visibility into the illuminated space rather than outwards.
All glass windows both transmit and reflect light; the question is, what's the total light coming off of a piece of glass? If the inside of the car is dark and the exterior is bright, then the light coming out through the glass will be a tiny fraction of the light being reflected, and the primary image that you see will be the reflected image. But if it is dark outside and you turn on a light inside the car, then you'll see mirrored windows - but you would be plainly visible from outside!
If the solar light works inside in a dark room but not outside, it may be due to insufficient exposure to sunlight outdoors. Ensure the solar panel is placed in a spot that receives direct sunlight and is not obstructed by shadows or debris. Additionally, check the battery to see if it needs replacing as it may not be holding a charge for outdoor use.
Outside - if they were inside, you would be blinded by the light.
outside
The eyes of a person out-side the car have adjusted to the light level out-side. As the glass it dark the inside of the car is darker than it is outside, and is too dark for the person outside to make out any detail. The effect is helped by bright reflections off the glass compared to a dark image as the reflections are brighter than what is in the car, and mask the interior. From inside the car the opposite effect takes place. They eyes of those inside have adjusted to the dark interior of the car, so the light coming in through the windows is plenty bright enough for them to see what is going on outside. Reflections off the glass on the inside are there but in the car is so dark the reflections are darker than the view through the window. The view is brighter than the reflections. Of course if it is dark out side those inside can not see out. Turn the lights on in the car and the situation is reversed, people can see in, but those inside an can not see out.
no theres a light bulb in it...
It isn't.
Quite often they can see them. However sometimes it is made more difficult by a number of factors. Light reflecting off the window can make it hard to see into a room. As the light levels are different inside and outside, people's eyes adjust differently and that affects what they can see. When you go into a dark place, it is hard to see at first until your eyes adjust. When you go into a bright place, it can be very dazzling until your eyes adjust. When it is dark outside, you have the reverse effect. A person outside the window can see the person inside much easier than the person inside can see the person outside. It is always easier to see from a dark area into a bright area than the other way around.