They all wake up and look for the sun in the sky.

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It would be a slight improvement to add a curtain over the virtual porthole (rather than a switch to shut it on and off), so that guests can leave the video running and wake up with the sense that the sun is "virtually" peeking though their curtains.

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In the wake of his discovery Nocera founded a company called Sun Catalytix with backing by Polaris Ventures.

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"You wake up in the morning at about 5 o'clock ... and then you watch the sun rise and this extremely peaceful and serene atmosphere and then you just look at the sun coming like a ball of fire, rising from the sand and then coming up, " recalls Jibunoh.

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