Technologies

Scientists create a wooden knife three times sharper than a steel blade

Wooden knife slices through well-done steak like go through butter.

I’ve been to enough fairs and foodie festivals to know the wooden knife and fork you get with your semi-hot duck fries are dismal excuses for cutlery. They’re good at moving food around a plate, but that’s really it. The plastic sometimes works a little better, but that’s not great for the planet. And then there’s the knives made from frozen human feces? Don’t get me started on how poorly those cut through meat.

The gold standard for knives is usually steel or ceramics, but in a new study, appearing in the journal Matter on Oct. 20, material scientists describe their latest creation: A «hardened wood knife» around three times sharper than a stainless steel dinner knife. It can «easily» cut through a medium-well done steak, according to Teng Li, a materials scientist at the University of Maryland and first author on the paper, and can be used and reused many times.

«In our kitchen, we have many wood pieces that we use for a very long time, like a cutting board, chopsticks, or a rolling pin,» Li said in a statement. «These knives, too, can be used many times if you resurface them, sharpen them, and perform the same regular upkeep.»

Using wood for cutlery isn’t a new idea — the foodie festivals will tell you that much — but Li’s team developed a two-step method for hardening the wood in their knives that increased the blade’s hardness 23-fold. This was achieved by ensuring the wood retained a higher level of cellulose.

Typically, wood contains only about 50% cellulose, which provides some structural integrity, and weaker molecules make up the rest. Li’s two-step process was able to remove these weaker components but retain the cellulose. Coating the wood in mineral oil helps protect its sharpness during use and washing.

Using a high-resolution microscope, Li’s team examined the wooden knife to determine why it was retaining so much strength. They discovered the two-step process the used prevented defects from creeping in. «The strength of a piece of material is very sensitive to the size and density of defects, like voids, channels, or pits,» he said in a statement.

The team didn’t stop at hardened wooden knives, either. They also developed wooden nails, showing they were as sharp as conventional steel nails.

The knife’s function is impressive, but its manufacturing process could also be important. The team writes that it could be a «renewable and low-cost alternative» with «the potential to replace plastic table utensils.»

Technologies

Today’s NYT Mini Crossword Answers for Monday, April 28

Here are the answers for The New York Times Mini Crossword for April 28.

Looking for the most recent Mini Crossword answer? Click here for today’s Mini Crossword hints, as well as our daily answers and hints for The New York Times Wordle, Strands, Connections and Connections: Sports Edition puzzles.

Today’s NYT Mini Crossword isn’t too tough. I knew the 1990 Madonna hit (5-Across), but had no idea on the very next question involving tennis (6-Across). You win some, you lose some. Need some help with today’s Mini Crossword? Read on. And if you could use some hints and guidance for daily solving, check out our Mini Crossword tips.

The Mini Crossword is just one of many games in the Times’ games collection. If you’re looking for today’s Wordle, Connections, Connections: Sports Edition and Strands answers, you can visit CNET’s NYT puzzle hints page.

Read more: Tips and Tricks for Solving The New York Times Mini Crossword

Let’s get at those Mini Crossword clues and answers.

Mini across clues and answers

1A clue: Chef’s creation
Answer: DISH

5A clue: Iconic Madonna hit of 1990
Answer: VOGUE

6A clue: Section of a tennis court used when playing doubles
Answer: ALLEY

7A clue: State of mind
Answer: MOOD

8A clue: Not amateur
Answer: PRO

Mini down clues and answers

1D clue: Rarely-used word meaning «sadness»
Answer: DOLOR

2D clue: Snow place like home?
Answer: IGLOO

3D clue: Went after in court
Answer: SUED

4D clue: «Yo»
Answer: HEY

5D clue: Fill time on stage
Answer: VAMP

How to play more Mini Crosswords

The New York Times Games section offers a large number of online games, but only some of them are free for all to play. You can play the current day’s Mini Crossword for free, but you’ll need a subscription to the Times Games section to play older puzzles from the archives.

Technologies

Today’s NYT Connections: Sports Edition Hints and Answers for April 28, #217

Hints and answers for the NYT Connections: Sports Edition puzzle, No. 217, for April 28.

Looking for the most recent regular Connections answers? Click here for today’s Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles.

Connections: Sports Edition must be incredibly difficult to assemble. I’ve noticed numerous categories where the puzzle maker falls back in picking a certain athlete, and then listing that person’s past teams, often including college and national or Olympic teams. Hint: There’s one like that today. Read on for hints and the answers.

Connections: Sports Edition is out of beta after making its debut on Super Bowl Sunday on Feb. 9. That’s a sign that the game has earned enough loyal players that The Athletic, the subscription-based sports journalism site owned by the Times, will continue to publish it. It doesn’t show up in the NYT Games app but now appears in The Athletic’s own app. Or you can continue to play it free online.

Read more: NYT Connections: Sports Edition Puzzle Comes Out of Beta

Hints for today’s Connections: Sports Edition groups

Here are four hints for the groupings in today’s Connections: Sports Edition puzzle, ranked from the easiest yellow group to the tough (and sometimes bizarre) purple group.

Yellow group hint: I want this one.

Green group hint: Win a medal here.

Blue group hint: Hoopster’s history.

Purple group hint: It’s also a hat.

Answers for today’s Connections: Sports Edition groups

Yellow group: Choose.

Green group: Last four Summer Olympics hosts.

Blue group: Teams Kevin Durant has played for.

Purple group: ____ Derby.

Read more: Wordle Cheat Sheet: Here Are the Most Popular Letters Used in English Words

What are today’s Connections: Sports Edition answers?

The yellow words in today’s Connections

The theme is choose. The four answers are draft, pick, select and take.

The green words in today’s Connections

The theme is last four Summer Olympics hosts. The four answers are London, Paris, Rio de Janeiro and Tokyo.

The blue words in today’s Connections

The theme is teams Kevin Durant has played for. The four answers are Texas, Thunder, United States and Warriors.

The purple words in today’s Connections

The theme is ____ derby. The four answers are home run, Kentucky, Manchester and roller.

Technologies

We Love This Ugreen Tracker, and It’s Just $13 Right Now

These handy tags are a great way to keep track of your items without having to fork over the full price of $20 — for a limited time, at least.

Losing keys, having misplaced luggage and other items can be a major inconvenience. It takes time to recuperate your things, and replacing them can cost you money you’d rather spend on other needs. If you’ve got a few things you want to keep a closer eye on, then a tracker might be a great option for you. We’ve spotted this Ugreen FineTrack smart finder for just $13 at Amazon, which saves you $7 after you clip the on-page coupon. Amazon prices tend to fluctuate, so we suggest acting fast if this deal is of interest. Plus, it’s a great chance to save on electronic goods that might increase in cost due to impending tariffs.

This Ugreen FineTrack smart finder is compact, light and easily clips onto your keys, bags and other items. It’s compatible with Apple’s FindMy feature, which makes it a more affordable alternative to AirTags, which have a list price of $30. Once removed from the package, all have to do is use Bluetooth and sync this tracker to your FindMy app on any Apple device. The Ugreen FineTrack requires a battery that can last up to two years.

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Need an extra pair of eyes? You can share the location of your tag with up to five more people. Plus, you can turn on an alarm that makes a loud sound so you can locate misplaced items. You can also set up notifications that can remind you if you’ve left something behind.

To better take advantage of these trackers, take a look at our article about the best places to use your tracker during travels.

Why this deal matters

This Ugreen FineTrack smart finder is down to just $13 for a limited time at Amazon. This saves you $7 over its usual asking price and is much more budget-friendly than other available trackers. Considering the potential for price increases due to tariffs, now is an excellent opportunity to nab this deal.