Problem: Stepper motors are a type of motor frequently used when precise rotations are required. In a stepper motor an internal rotor containing PMs or a magnetically soft rotor with salient poles is controlled by a set of external magnets that are switched electronically. A stepper motor may also be thought of as a cross between a DC electric motor and a rotary solenoid. As each coil is energized in turn, the rotor aligns itself with the magnetic field produced by the energized field winding. Unlike a synchronous motor, in its application, the stepper motor may not rotate continuously; instead, it "steps"starts and then quickly stops againfrom one position to the next as field windings are energized and de-energized in sequence. Depending on the sequence, the rotor may turn forwards or backwards, and it may change direction, stop, speed up or slow down arbitrarily at any time.
How does a stepper motor differ from a synchronous motor?
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Answer: the stepper motor may not rotate continuously

Problem: The English concentrated on the spirit of the events of Christ's life, not the literality of events. They neither expected nor sought the appearance of the stigmata or any other physical manifestation. They wanted to create in themselves that environment that allowed Jesus to fulfill His divine mission, insofar as they were able. At the center of this environment was love: the love that Christ showed for humanity in becoming human. Christ's love reveals the mercy of God and His care for His creation. English Dominican mystics sought through this love to become images of God. Love led to spiritual growth that, in turn, reflected an increase in love for God and humanity. This increase in universal love allowed men's wills to conform to God's will, just as Christ's will submitted to the Father's will.
What does love lead to according to French mystics?
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Answer: unanswerable

Problem: Judging relationships based on shared characters requires care, since plants may resemble one another through convergent evolution in which characters have arisen independently. Some euphorbias have leafless, rounded bodies adapted to water conservation similar to those of globular cacti, but characters such as the structure of their flowers make it clear that the two groups are not closely related. The cladistic method takes a systematic approach to characters, distinguishing between those that carry no information about shared evolutionary history such as those evolved separately in different groups (homoplasies) or those left over from ancestors (plesiomorphies) and derived characters, which have been passed down from innovations in a shared ancestor (apomorphies). Only derived characters, such as the spine-producing areoles of cacti, provide evidence for descent from a common ancestor. The results of cladistic analyses are expressed as cladograms: tree-like diagrams showing the pattern of evolutionary branching and descent.
How can two different plants acquire the same traits?
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Answer:
arisen independently