Turn on the Light!
- Exploration Stage
- Collector’s House
- From
- Helen
- Description
- I don’t need blueprints to know that any projector, star or not, needs a light source. Help me find an arc lamp. It’s very powerful. It looks like a flask with two rods inside.
- Completed
- You’ve found the arc lamp! Careful, don’t turn it on yet. The arc inside the lamp can heat up to several thousand degrees Celsius. Did you know that the first arc lamp was invented 77 years before the Edison bulb?