Meeri Kim

Los Angeles

Science Writer at Freelance

Science writer | Regular contributor @WashingtonPost | @Penn Physics PhD | Email: [email protected]

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Articles

Rough night ahead? Try sleep banking to stay alert

1 week ago | nzherald.co.nz | Meeri Kim

Sleep banking helps reduce fatigue and boost alertness before sleep loss. Photo / 123RFSnoozing for extra hours before a period of sleep deprivation can help keep you more alert and improve performance. In an ideal world, every night would offer a chance to recharge with long, restful slumber. But life happens, and things like working long or odd hours, taking care of a baby or a sick person or dealing with jet lag can stand in the way of a good night’s sleep.
Rough night ahead? Try sleep banking to stay alert

2 weeks ago | torontosun.com | Meeri Kim

A lot of people try to catch up after losing sleep by getting extra hours over the following night or so. But there’s also something you can do ahead of time if you know you’re in for a rough night or two. It’s a preemptive approach known as “sleep banking,” or snoozing extra hours leading up to a period of anticipated sleep loss.
Optics & Photonics News - All-Optical Method for Dating Ice Cores

2 weeks ago | optica-opn.org | Meeri Kim

The field of paleoclimatology studies the climates from past geologic ages, before the invention of meteorological instruments. Similar to the way that paleontologists study fossils to gain insight into the prehistoric past, paleoclimatologists use environmental evidence such as ice cores to reconstruct Earth’s climate history. Researchers in China and the United States have developed an all-optical method for radiometric dating of ice samples up to 1.5 million years old (Nat.
Rough night ahead? Try sleep banking to stay alert.

2 weeks ago | washingtonpost.com | Meeri Kim

Rough night ahead? Try sleep banking to stay alert. (washingtonpost.com) Rough night ahead? Try sleep banking to stay alert. By Meeri Kim 2025052010000000 In an ideal world, every night would offer a chance to recharge with long, restful slumber. But life happens, and things like working long or odd hours, taking care of a baby or a sick person or dealing with jet lag can stand in the way of a good night's sleep.
Optics & Photonics News - Ice Loss Narrows Spectrum of Ocean Light

4 weeks ago | optica-opn.org | Meeri Kim

The extent of sea ice that forms, expands and melts in the ocean is a key indicator of climate change. In recent years, ice cover has decreased dramatically, with predictions suggesting an ice-free Arctic Ocean in summer within the next few decades. The consequences of this steep decline are wide-ranging, such as less sunlight reflected back into space and disruption of ocean currents.
Optics & Photonics News - Detecting Nanoplastics in Bodily Fluids

1 month ago | optica-opn.org | Meeri Kim

Microplastics—as well as the smaller nanoplastics—are everywhere, including in our food, drinking water and even our bodies. These tiny pieces of plastic are not biodegradable, so they accumulate and persist in the environment. Many microplastics originate from the breakdown of larger plastics, such as plastic bags and bottles and clothing made with synthetic textiles.
Optics & Photonics News - Lattice Strain Boosts Solar Cells

1 month ago | optica-opn.org | Meeri Kim

Perovskite solar cells represent the fastest-developing photovoltaic technology to date, with a power-conversion efficiency (PCE) that has skyrocketed from 3.8% to 26.7% in the last 15 years. To further boost PCE, tandem architectures have been created that combine a wide-bandgap perovskite top cell with a narrow-bandgap bottom cell. However, light-induced phase segregation—a common occurrence in wide-bandgap perovskite formulations—limits their efficiency and stability.
An AI-enhanced treatment has reduced Parkinson’s symptoms for some people

2 months ago | washingtonpost.com | Meeri Kim

An AI-enhanced treatment has reduced Parkinson’s symptoms for some people (washingtonpost.com) An AI-enhanced treatment has reduced Parkinson’s symptoms for some people By Meeri Kim 2025040310000000 At 40, Keith Krehbiel was a successful political scientist with a distinguished professorship, an award-winning book and a membership at the American Academy of Arts and Sciences.
An AI-enhanced treatment has reduced Parkinson’s symptoms for some people

2 months ago | flipboard.com | Meeri Kim

2 hours agoIf you think the backlash is bad now, what happens when Optimus comes out? A few hours before Tesla reported some bad quarterly sales results, Elon Musk took to X to make a bold prediction about his next plan: “The rate of improvement is indeed rapid,” Musk wrote while sharing a post from an admirer …
How to keep your memory sharp as you age

2 months ago | washingtonpost.com | Meeri Kim

How to keep your memory sharp as you age (washingtonpost.com) How to keep your memory sharp as you age By Meeri Kim 2025033118003300 Consumer Reports has no financial relationship with any advertisers on this site. With age, our brains change just as much as our bodies do — even if the shift isn't always as noticeable. Brain volume decreases, for example, and neural connections may weaken.