有问必答(第 2 页)

流行科学 回答您最奇特、最烧脑的问题，从寻常到稀奇古怪。

最新有问必答

A woman sitting up in bed at night, looking frustrated and rubbing her neck while a man next to her sleeps with his mouth open. A warm lamp hangs on the wall behind them. The woman appears disturbed by the man's snoring or sleep talking.
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作者：Lauren Leffer

X-ray scan of two pieces of luggage showing densely packed electronics, wires, and personal items in vivid colors.
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作者：Diana Hubbell

A young girl in a pink polka-dot swimsuit naps on a towel at the beach, wearing pink sunglasses pushed up on her head.
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作者：Lauren Leffer

Rows of airline economy seats viewed from the back, with passengers seated and individual seatback screens turned on, inside a bright airplane cabin.
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作者：Diana Hubbell

A digitally edited image of an older woman with white hair and wrinkles holding up a photo of her younger self, showing smoother skin and youthful features. The contrast highlights aging differences between the two faces.
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作者：Clarissa Brincat

A grey tabby cat with green eyes is lying on its side atop two concrete blocks. The cat has its head tilted and one paw raised near its face, appearing relaxed and content. In the background, there is green grass and plants slightly out of focus.
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作者：Laura Baisas

A young girl sitting on a plane holds her hears in pain.
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作者：Sarah Lindenfeld Hall

a person cracks an egg over a campfire into a skillet with red peppers
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作者：Avery Schluyer Nunn

blue face looks out as the edges fade
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作者：Keith Wagstaff

an airplane lavatory with a toilet and sink
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作者：Tom Hawking

eggs arrange on refrigerator shelf
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作者：Clarissa Brincat

a doctor usess a tongue depressor to examine a young boy's throat
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作者：Lauren Leffer

a small, inflated red ballon simulating an egg is surrounded on one side by multiple deflated balloons of various colors simulating sperm
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作者：Julia Daye

A turtle basking with its legs outstretched on a rock. This activity is normal and beneficial to turtles.
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作者：Laura Baisas

Jupiter on a black background
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作者：RJ Mackenzie

a woman douses herself with water from a plastic bottle on a hot, sunny day
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作者：Laura Baisas

Huge wave breaking. Ocean spray is thrown into the air. World famous surf break named Jaws on the Northshore of Maui, Hawaii.
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作者：Avery Schluyer Nunn

Model of human brain floating over bed in dark room
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作者：Clarissa Brincat

Happy smiling little boy out in the rain
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作者：Tom Hawking

A loving father of African descent sits on the couch at home and reads a storybook to his preschool age daughter. The child is sitting on her father's lap and is smiling while looking at the book.
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作者：Sarah Lindenfeld Hall

clouds in a blue sky
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作者：Clarissa Brincat

new york city skyline
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作者：Sarah Durn

orange and yellow flames on a black background
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作者：Lauren Leffer

a smart watch and phone illuminate as a woman is sleeping
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作者：Julia Daye

Portrait of a 5 month old baby girl
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作者：Sarah Lindenfeld Hall

Hand holds Vintage photograph of boy on tricycle at christmas
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作者：RJ Mackenzie

A wildfire frontline with emergency services nearby, Okanagan Valley, British Columbia, Canada.
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作者：Lauren Leffer

a woman browsing a sunscreen aisle in a grocery store
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作者：Laura Baisas

Women practicing necessary steps for ice bath therapy, pinching their noses with their fingers to hold their breath, listening carefully to the instructor, mentally preparing for a new and revitalizing healing experience
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作者：Sarah Lindenfeld Hall

a woman drinks water with the sun beating down
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作者：Laura Baisas

a smiley face made of white sunscreen on a hand
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作者：Laura Baisas

concept image of intestines and medicine
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作者：Harriet Weber

A man playing snooker at a billiard club in Beijing. the blue ball is in front, with the yellow, white, red, and green balls in a row behind it
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作者：Tom Hawking

A blue tit flies to a feeder in a garden, where a great spotted woodpecker is currently sitting.
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作者：Laura Baisas

a mother and child walk in beside an amtrak train parked at railroad station
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作者：Mack DeGeurin

a mosquito under a microscope
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作者：RJ Mackenzie

white smoke coming out of a chimney
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作者：Laura Baisas

Passengers inside the cabin of a commercial airliner during flight. Shallow depth of field with focus on the seats in the foreground.
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作者：Mack DeGeurin

Teenage boy in record store shopping for music
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作者：Tom Hawking

a spiral galaxy with red, white, and yellow stars, swirling around a bright, yellow, star in the center
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作者：Lauren Leffer

An unrecognizable person doing full-body red light therapy (RLT) in a dark room surrounded by LED.
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作者：Sarah Lindenfeld Hall

small gumballs in bright colors including green, blue, red, pink, orange, white, yellow, and purple
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作者：Lauren Leffer

Close-up of Funny gigner cat sniffs at a cucumber on the table against gray background,
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作者：Sarah Lindenfeld Hall

A man suffering from hay fever next to a flowering shrub.
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作者：Laura Baisas

water from a faucet fills a plastic cup
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作者：Lauren Leffer

a wrinkly hand
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作者：RJ Mackenzie

White SUV driving with passenger holding American flag
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作者：Kristin Shaw

Sant'Antiocho, Sardinia, Italy - May 6, 2008: A senior fisherman in a traditional cap squints at the camera at golden hour with the sea in the background in the fishing village of Sant'Antiocho. Close-up shot.
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作者：Clarissa Brincat

colorful and fun web of polygons lines and small round particles floating randomly
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作者：Harriet Weber

Man shakes his head while being doused with water
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作者：RJ Mackenzie

A postcard advertises the GM (or General Motors) Chevrolet Nova Custom coupe, seen from both the side and from the rear with the hatchback open, 1974. (Photo by Transcendental Graphics/Getty Images)
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作者：Kristin Shaw

An Opened Prescription Medicine Bottle Among Many Other Sealed Bottles on Yellow Background High Angle View.
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作者：Julia Craven

CALIFORNIA, USA - MAY 9: U.S. President Biden arrives at Moffett Federal Airfield of NASA Ames Research Center in Mountain View, California, United States on May 9, 2024.
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作者：Mack DeGeurin

Florida, Coral Gables, Classic Car Show, 1955 Pontiac, blue, chrome bumper,
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作者：Kristin Shaw

an arm covered in a rose tattoo
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作者：RJ Mackenzie

A pattern of ears on a background
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作者：Clarissa Brincat

two side by side illustrations. on the left, a man with a red background sweating next to a thermometer with a high temperature. on the right, a man with a blue background shivering next to a thermometer with a lower temperature
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作者：Laura Baisas

Young woman yawning, close up
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作者：Clarissa Brincat

Once considered vestigial, the appendix may play an essential role in gut health.
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作者：Julia Craven

noses and a green stink cloud
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作者：Keith Wagstaff

girl dreaming waking up
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作者：Lauren Leffer

NASA’s Solar Dynamics Observatory captured this image of a solar flare–as seen in the bright flash on the right side–on September 10, 2017. The image shows a combination of wavelengths of extreme ultraviolet light that highlights the extremely hot material in flares, which has then been colorized.
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作者：Laura Baisas

Close up on woman white teeth.
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作者：Harriet Weber

dog depression
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作者：Mack DeGeurin

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