What does a robot use to gather information about its surroundings?
AnswerSensors
Sensors such as cameras, touch switches and distance sensors give a robot data about the world.
Tech · Facts & stats
Robotic facts & stats
7 fact-checked facts about robots and robotics, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What is a humanoid robot?
AnswerA robot built with a body shape like a human's
Humanoid robots have a head, torso, arms and often legs arranged like a person.
Going deeper
The word 'robot' comes from which language?
AnswerCzech
'Robot' comes from the Czech robota, meaning forced labor, and was popularized by a 1920 play.
How many laws of robotics did writer Isaac Asimov set out in his original stories?
AnswerThree
Asimov's Three Laws of Robotics first appeared together in his 1942 story 'Runaround'.
LIDAR sensors measure distance by timing reflections of what?
AnswerLaser light
LIDAR sends out laser pulses and times their return to build a 3D map.
Expert level
In robotics, what does 'degrees of freedom' describe?
AnswerThe number of independent ways a robot can move
Each independent joint motion adds a degree of freedom; a typical industrial arm has six.
What makes a servo motor different from a basic DC motor?
AnswerIt uses feedback to move to and hold a precise position
A servo compares its measured position with a target and corrects itself, enabling precise angles.
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