To alert ships that they are approaching land.
If it were a dark colour, it would attract too much heat.
the zoom the tester the power and the light
Houses in the desert often have light colored roofs because they reflect sunlight and heat better than dark colored roofs. This helps to keep the house cooler by reducing heat absorption, making it more energy efficient and comfortable inside.
visible light
Example table lamp,bulb,candle,electric light and many others
[object Object]
The state with the most light houses is Michigan.
Five Finger Islands Light was created in 1902.
no
the alunminium foil provides a barrier for light .
Light houses are made to direct boats to a port or dock at night when they can't see as well.
Space Angel - 1962 The Light Barrier 1-8 was released on: USA: 1962
it has a giant light bulb that spins around
To prevent shipwrecks
There is an important distinction between 'activating a spell/trap' and 'activating the effect of a spell/trap'. Light Barrier's activation was when it was placed face-up on the field, and this is the only time an activation negation card like Magic Jammer could be used against it. Then after they have resolved to the field, some of them have a reusable effect, this is not activating the card, just activating the effect.Later on, even if it has an effect that uses the chain (Light Barrier's does), this is only activating the 'effect' of Light Barrier, he is not 'activating Light Barrier', therefore Magic Jammer can not be used at this time.
granite, brick or wood
lava lamps, matches, flares, light houses