Which of these details does NOT support the central
idea?
Central Idea: Even though one of Edison's inventions failed, he never stopped
trying out new ideas,
The vocal engine had a few fatal flaws.
Sound waves are not powerful enough to make the
vocal engine useful.
Edison created a version of the light bulb that
was affordable and long-lasting.
The vocal engine was a cumbersome device for the
user.

There are many ironic elements throughout the text.

Explanation:

In "Rip Van Winkle," Washington Irving uses figurative language that conveys secret and obscured messages left to readers to discover.

While there is a description of a “curtain lecture” as “worth all the sermons in the world for teaching the virtues of patience and long-suffering.”, which should describe how Dame Van Winkle's lecturing teaches patience, the  real message underneath it is that this type of nagging is not valuable at all.

The story describes how Dame Van Winkle often lectures and nags him:

“… his wife kept continually dinning in his ears about his idleness, his carelessness, and the ruin he was bringing on his family. Morning, noon, and night, her tongue was incessantly going, and everything he said or did was sure to produce a torrent of household eloquence.”

These are just some of the examples which Washington Irving uses as humor and irony to show the relationship between Rip and his wife.