Topics from July 2017
- How do we see distant objects with binoculars?
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- What is the Theory of Relativity?
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- How is nylon made?
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- How does a crane work?
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- How is an automobile’s speed measured?
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- How is electricity conducted through wires?
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- How does an automobile engine work?
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- What is a periscope?
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- How are hard drinks made?
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- How are matches made?
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- How can the temperature of stars be measured?
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- What are the different types of thermometers?
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- Why do some acids cause burn?
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- How are different dyes made?
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- What is dry cleaning?
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- What is quartz?
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- How does a video-tape recorder work?
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- How does a microphone work?
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- What is a Mass Spectrograph?
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- What are Quasars?
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- How can we extinguish fires?
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- How does a polaroid camera take instant photographs?
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- Can light travel through wires?
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- How is talcum powder made?
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- What is stereophonic sound?
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- What is Heavy Water?
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- What is an Atomic Clock?
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- How does a film projector work?
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- What are quarks?
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- What is a Robot?
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