magnetic bubble


Definition of magnetic bubble

: a tiny movable magnetized cylindrical volume in a thin magnetic material that along with other like volumes can be used to represent a bit of information (as in a computer)

Examples of magnetic bubble in a Sentence

Recent Examples on the Web Last year it was discovered that during the mission, the spacecraft also flew through a plasmoid -- a giant magnetic bubble that likely pinched off part of the planet's atmosphere, sending it out into space. Rob Picheta, CNN, "Scientists have discovered X-rays coming from Uranus," 1 Apr. 2021 But Earth’s thick atmosphere and magnetic bubble shield our planet from much incoming radiation, making these streaks of luminescence scarce. Maya Wei-haas, National Geographic, "One of Jupiter's icy moons may glow in the dark," 9 Nov. 2020 This magnetic bubble, called the heliosphere, protects the planets from harmful cosmic radiation jettisoned out in the wake of powerful cosmic events like supernovae. Jennifer Leman, Popular Mechanics, "Is Our Solar System Shaped Like a Croissant or a Jumbo Shrimp?," 12 Aug. 2020 But last year, while combing through NASA’s archives, two planetary scientists noticed something earlier analyses had overlooked—a blip in Uranus’s magnetic field as the spacecraft cruised through a magnetic bubble of sorts. Charlie Wood, Popular Science, "Uranus blasted a gas bubble 22,000 times bigger than Earth," 30 Mar. 2020 Plenty of them happen on Earth and Mars triggered by upper atmospheric chaos, the action of the solar wind, and kinks in the planets’ magnetic bubbles, among other things. Robin George Andrews, National Geographic, "Mysterious magnetic pulses discovered on Mars," 20 Sep. 2019 However, more powerful solar outbursts can give birth to geomagnetic storms that wreak havoc in Earth’s magnetic bubble, potentially delivering serious damage to the planet’s electrical infrastructure. National Geographic, "Solar storms can be even worse if you live near certain rocks," 18 Mar. 2019 This onslaught damages electronic circuits on satellites, and any astronauts outside of Earth’s magnetic bubble could get a potentially life-threatening dose of radiation. National Geographic, "Solar storms can be even worse if you live near certain rocks," 18 Mar. 2019 Then, 18 hours to several days after the start of the event, a colossal plasma cloud known as a coronal mass ejection may crash into Earth’s magnetic bubble at 1,900 miles a second. National Geographic, "Solar storms can be even worse if you live near certain rocks," 18 Mar. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'magnetic bubble.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of magnetic bubble

1969, in the meaning defined above

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Time Traveler for magnetic bubble

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The first known use of magnetic bubble was in 1969

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Statistics for magnetic bubble

Last Updated

6 Apr 2021

Cite this Entry

“Magnetic bubble.” Dictionary, Merriam-Webster, Accessed 9 May. 2021.

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