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For years, scientists have been unable to agree on the length of a day on Venus, but one new study might put an end to this confusion.
The planet Venus rotates very slowly, with a single revolution taking about 243 Earth days, and this rotation rate varies. Additionally, while the planet turns slowly, its atmosphere moves dramatically faster, making a complete rotation in only four Earth days, according to a statement about the new study. However, while we can follow the planet's changing rotation, until now, scientists weren't able to clearly explain why the rate changes.
Thanks to images from the Akatsuki spacecraft of JAXA, the Japanese space agency, researchers think that they have finally found the reason behind these variations. In a new study, published today (June 18) in the journal Nature Geoscience, researchers showed how the interaction between Venus' fast-moving atmosphere and its surface, marked with volcanos and mountains, changes the speed of the planet's spin.
Recently, Akatsuki spotted a huge, bow-shaped atmospheric structure on Venus. The spacecraft noticed that the structure kept disappearing and reappearing, yet it remained in the same location above mountains on the planet's surface. When researchers first studied images of the planet from Akatsuki's mission in 2015, they suggested that the strange structure was actually a fast-moving mountain wave. A mountain wave is a type of atmospheric gravity wave created by topographical elements like mountains and the way wind flows over them.
Venus' surface is difficult to image not only because of the planet's varying rotation, but also because the surface is "hidden behind a permanent, thick cloud cover," Thomas Navarro, study author and researcher at the University of California, told Space.com in an email. This has made it especially difficult for researchers to understand this phenomenon.
However, by using pictures at various wavelengths from Akatsuki, the researchers in the new study were finally able to get a clear image of the bow-shaped structure and confirm the presence of a mountain wave. They also explained how mountain waves cause Venus to spin at varying speeds: Because of the different directions of the wind flowing upstream and downstream against the mountain, "Overall, a net force is exerted on the mountain, and the whole solid body follows," Navarro said.
By learning about Venus' mountain waves, scientists can better "understand how angular momentum is transferred between the solid body [of Venus] and the atmosphere," Navarro said. In other words, because researchers have confirmed that the mysterious structure is a mountain wave, they can better study "how the atmosphere and the solid body affect each other, and why Venus is the way that it is," he said.
The planet Venus rotates very slowly, with a single revolution taking about 243 Earth days, and this rotation rate varies. Additionally, while the planet turns slowly, its atmosphere moves dramatically faster, making a complete rotation in only four Earth days, according to a statement about the new study. However, while we can follow the planet's changing rotation, until now, scientists weren't able to clearly explain why the rate changes.
Thanks to images from the Akatsuki spacecraft of JAXA, the Japanese space agency, researchers think that they have finally found the reason behind these variations. In a new study, published today (June 18) in the journal Nature Geoscience, researchers showed how the interaction between Venus' fast-moving atmosphere and its surface, marked with volcanos and mountains, changes the speed of the planet's spin.
Recently, Akatsuki spotted a huge, bow-shaped atmospheric structure on Venus. The spacecraft noticed that the structure kept disappearing and reappearing, yet it remained in the same location above mountains on the planet's surface. When researchers first studied images of the planet from Akatsuki's mission in 2015, they suggested that the strange structure was actually a fast-moving mountain wave. A mountain wave is a type of atmospheric gravity wave created by topographical elements like mountains and the way wind flows over them.
Venus' surface is difficult to image not only because of the planet's varying rotation, but also because the surface is "hidden behind a permanent, thick cloud cover," Thomas Navarro, study author and researcher at the University of California, told Space.com in an email. This has made it especially difficult for researchers to understand this phenomenon.
However, by using pictures at various wavelengths from Akatsuki, the researchers in the new study were finally able to get a clear image of the bow-shaped structure and confirm the presence of a mountain wave. They also explained how mountain waves cause Venus to spin at varying speeds: Because of the different directions of the wind flowing upstream and downstream against the mountain, "Overall, a net force is exerted on the mountain, and the whole solid body follows," Navarro said.
By learning about Venus' mountain waves, scientists can better "understand how angular momentum is transferred between the solid body [of Venus] and the atmosphere," Navarro said. In other words, because researchers have confirmed that the mysterious structure is a mountain wave, they can better study "how the atmosphere and the solid body affect each other, and why Venus is the way that it is," he said.
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"Low-code platforms help speed the process for creating and deploying important business applications, putting more power in the hands of line-of-business professionals."
Read about App Maker, our new low-code tool, via TechRepublic ↓
Read about App Maker, our new low-code tool, via TechRepublic ↓
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"As a journalist, you should try to intersect and cross-reference the absolute craziness of the ongoing show" http://aje.io/vqfy8
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Nature has provided us with countless nutrients that help cure, heal, nourish and nurture our body. Here, take a look at 16 foods that have incredibly amazing healing properties.
http://www.hownutrition.info/16-healing-foods/
http://www.hownutrition.info/16-healing-foods/
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Xiaomi Mi A2 listed on Swiss electronics retail portal along with all its specifications- Technology News, Firstpost
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We’ve picked out 8 of the most common ear-related impairments and how they correlate with several common ailments.
http://www.howfitness.info/what-your-ears-say-about-your-health/
http://www.howfitness.info/what-your-ears-say-about-your-health/
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After President #Trump’s meeting with #KimJongUn, Trump announced that he would be suspending joint military exercises with #SouthKorea, as a gesture of goodwill toward the North. This seems to have come as a shock to America’s allies in Seoul. The weekend before, at the #G7 summit, a confab for leaders of seven wealthy democracies, Trump got into a fight with #Canada's Prime Minister Justin Trudeau over trade.
Trump’s betrayal of South Korea and eruption at Trudeau are not one-offs, or events you can write off as simple quirks of the president’s personality. It is part of a broader slate of Trump policies and diplomatic efforts that have, put together, fundamentally weakened #America’s ties with its traditional allies. America’s alliances depend on the #US’s reputation for upholding its agreements and treating its allies fairly. Trump’s blithe disregard for diplomacy and international agreements has damaged the US’s reputation in a way that some scholars worry may be irreparable.
#GlobalEconomy #Economy #Geopolitics #Diplomacy #ForeignPolicy #Politics #EconomicRisk #InternationalRelations #UnitedStates #US
How Trump is killing America’s alliances
https://www.vox.com/world/2018/6/12/17448866/trump-south-korea-alliance-trudeau-g7
Trump’s betrayal of South Korea and eruption at Trudeau are not one-offs, or events you can write off as simple quirks of the president’s personality. It is part of a broader slate of Trump policies and diplomatic efforts that have, put together, fundamentally weakened #America’s ties with its traditional allies. America’s alliances depend on the #US’s reputation for upholding its agreements and treating its allies fairly. Trump’s blithe disregard for diplomacy and international agreements has damaged the US’s reputation in a way that some scholars worry may be irreparable.
#GlobalEconomy #Economy #Geopolitics #Diplomacy #ForeignPolicy #Politics #EconomicRisk #InternationalRelations #UnitedStates #US
How Trump is killing America’s alliances
https://www.vox.com/world/2018/6/12/17448866/trump-south-korea-alliance-trudeau-g7
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Migrant kids are ‘child actors,’ Ann Coulter says on Fox News, telling Trump not to be fooled
Putting the dumb in dumb blonde. GRRRRRR!~
Putting the dumb in dumb blonde. GRRRRRR!~
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This is what I believe the treasonous Trumpster and the GOP are doing: they're trying to egg some confrontation to justify using martial law to take the country itself.
Their antics, their disregard for the Rule of Law (1,000 years of Western Law even), and provocations scream they WANT such a confrontation. They want an excuse to bring the military out -- why Trumpster surrounds himself with compromised generals.
They would try to find a red flag issue to justify it too.
#Resist the temptations, because they WANT to shoot people. Want to CONFISCATE PROPERTY. Want to build tent detention camps.
We must wait for the Rule of Law to do it's job, and only when it fails to protect the Constitution from this treasonous band, THEN, the people have no choice but to protect themselves from them.
#Trump #MAGA #Traitors
Their antics, their disregard for the Rule of Law (1,000 years of Western Law even), and provocations scream they WANT such a confrontation. They want an excuse to bring the military out -- why Trumpster surrounds himself with compromised generals.
They would try to find a red flag issue to justify it too.
#Resist the temptations, because they WANT to shoot people. Want to CONFISCATE PROPERTY. Want to build tent detention camps.
We must wait for the Rule of Law to do it's job, and only when it fails to protect the Constitution from this treasonous band, THEN, the people have no choice but to protect themselves from them.
#Trump #MAGA #Traitors
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Trump Just Handed Dems The Midterms With New Immigration Plan That Goes Beyond Child Separation: Not only is Trump cementing himself as a morally bankrupt president who lacks even the most rudimentary sense of compassion, but he is bringing the entire Republican Party down with him. The post Trump Just Handed Dems The Midterms With New Immigration Plan That Goes Beyond Child Separation appeared first on POLITICUSUSA.
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Why Being Left Handed Matters for Mental Health
The location of a person’s neural systems for emotion depends on whether they are left-handed, right-handed or somewhere in between, the research shows.
The research is in Philosophical Transactions of the Royal Society B: Biological Sciences. (full access paywall)
The location of a person’s neural systems for emotion depends on whether they are left-handed, right-handed or somewhere in between, the research shows.
The research is in Philosophical Transactions of the Royal Society B: Biological Sciences. (full access paywall)
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We also learned that Samsung autocorrect is the "bane of literally every agent of the FBI's existence."
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" I was dismayed to learned this weekend about a Tesla employee who had conducted quite extensive and damaging sabotage to our operations. This includes making direct code changes to the Tesla Manufacturing Operating System under false usernames and exporting large amounts of highly sensitive Tesla data to unknown third parties. "
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