Scientists want giant ‘liquid mirror’ telescope on moon

The video discusses a plan to build a 100-meter-wide liquid mirror on the moon's surface. This innovative telescope could capture light from ancient cosmic objects. Liquid mirrors are more efficient and cost-effective than traditional glass mirrors. They require constant rotation to form a perfect parabola, ideal for reflecting light. The project faces challenges, such as finding suitable liquids that won't freeze in the moon's cold temperatures.

What is the primary purpose of building a liquid mirror telescope on the moon?

• To capture light from ancient objects

• To study the moon's surface

• To communicate with Earth

• To generate solar power

Which of the following is NOT an advantage of liquid mirrors compared to conventional glass mirrors?

• They are more expensive

• They are faster to build

• They are simpler to construct

• They are lighter

What shape does the liquid form when it rotates in a liquid mirror telescope?

• A cylinder

• A cube

• A parabola

• A sphere

Why is mercury not suitable for use in liquid mirrors on the moon?

• It evaporates too quickly

• It will freeze in cold temperatures

• It is too expensive

• It is too heavy

What is being researched to minimize evaporation in liquid mirrors?

• A thicker layer of mercury

• A thin layer of material on top

• A vacuum seal

• A heating system