Answer to Dictation 1
Smartphones are a wonder of modern technology.
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Answer to Dictation 2
They have many features that we rely on every day.
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Answer to Dictation 3
They also have many hidden functions that we are unaware of.
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Answer to Dictation 4
The person whose height you are measuring must be standing in front of the camera.
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Answer to Dictation 5
The new measurement app could end arguments about who is the tallest.
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Answer to Dictation 6
The app uses augmented reality and a special sensor that is inside the camera.
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Answer to Dictation 7
It is used to make digital 3D models of areas of the Earth's surface.
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Answer to Dictation 8
LiDAR measures a person's height by sending out pulses of light.
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Answer to Dictation 9
These light pulses bounce off the person being measured.
Go to Dictation 10
Answer to Dictation 10
The app isn't as cool as drawing lines on a door to find someone's height.
See the height measurement lesson for the whole text.
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