Technologies
Greenland’s Huge Meltwater Waterfalls Generate Massive Hydropower
New research finds that the huge ice sheet is melting both from the top and bottom.

The surface of the Greenland ice sheet is melting, creating a network of ephemeral rivers and waterfalls that scientists say produces more hydropower than the collective output of the 10 largest hydroelectric stations on the planet.
It’s part of a brutal feedback loop brought on by climate change that could hasten the rise in sea levels around the world.
In summer, an increasing amount of the frozen surface melts, forming lakes and streams that rapidly make their way to the bottom of the ice sheet — traveling downward as much as a full kilometer — by rushing through cracks and large fractures. An international team of researchers set out to measure how much energy was created by this process.
«There’s a lot of gravitational energy stored in the water that forms on the surface, and when it falls, the energy has to go somewhere,» Cambridge University professor Poul Christoffersen explained in a statement.
Unfortunately, that energy is being converted to heat at the base of the ice sheet, leading to high rates of melting both on the top and bottom of the sheet.
The team used a kind of radar to measure the amount of melting and found rates often just as high on the bottom of the ice sheet as on the sun-splashed surface.
«The heat generated by the falling water is melting the ice from the bottom up, and the melt rate we are reporting is completely unprecedented,» Christoffersen said.
The study is published in the latest issue of the Proceedings of the National Academy of Sciences.
The researchers calculate up to 82 million cubic meters of water fell from the surface to the base of Store Glacier on the Greenland Ice Sheet each day during the summer of 2014. They estimate that water falling to the bottom of the sheet produces more hydropower during summer than the world’s top 10 hydroelectric generating stations combined.
«Given what we are witnessing at the high latitudes in terms of climate change, this form of hydropower could easily double or triple, and we’re still not even including these numbers when we estimate the ice sheet’s contribution to sea level rise,» Christoffersen said.
The Greenland Ice Sheet is already the largest single contributor to global sea level rise.
It’s too bad there’s no practical way to capture this hidden hydropower, as all that clean energy could help reduce the emissions that are actually accelerating its creation.
Technologies
I Love Using My Phone to Shoot Stunning Home Movies and You Can Too
You don’t need the best equipment to shoot family home movies you’ll cherish. Here’s how to get better results with just your phone.

The iPhone 16 Pro is a superb camera for shooting video, thanks to its stunning quality, its simple operation and even its fun 4K slow motion mode. It’s never been easier to shoot gorgeous footage of your family or your friends whether you’re gathering at home or celebrating on vacation. Don’t have an iPhone? No worries! Other phones like the Samsung Galaxy S25 Ultra, Pixel 9 Pro XL or older iPhones and Android phones are also capable of capturing professional-looking video with very little effort on your part. But if you want to add some Hollywood flair to your videos, there’s a lot you can do to take things to the next level.
Read more: Best Camera Phones to Buy Right Now
It takes more than just a good camera to create videos you’ll want to watch again and again. You also need to know how to use that camera properly, how to capture the right moments and what makes for a good-looking shot. A creative eye and some planning will help too, taking you from a simple home video into something more inspiring that you’ll want to share with your family and watch again in years to come.
Here are my top tips that you should keep in mind when making your own family movies, whether you’re gathering for a holiday feast, journeying off to exotic lands on vacation or simply having some backyard drinks with friends.
1. Consider what you want your video to be
Before you start, you should give a bit of thought to what you want your video to include. While it could just be a full film of everything that happens over the holidays, or your child’s upcoming birthday, consider making it a bit more specific. Perhaps a video all about the games you play together, or them opening their presents.
Having a more focused story to tell — even a basic one — will help you consider what shots you’ll need to get, and it’ll help you shoot and edit only what you need, rather than having endless hours of footage to sift through. A Christmas day movie can be more straightforward as you’ll likely want to simply tell the story from the morning through to the drinking and games at the end of the day. Even so, try and consider how you can be selective and tell an interesting story rather than just filming every minute of the day you have together.
For my own festive-themed video (embedded above), I decided to show how I make my own hot mulled cider. By keeping it to a specific topic I was able to determine exactly the shots I needed and in what order, and even sketched out a storyboard of shots ahead of time. You don’t have to go that far, but having a rough idea in mind will help a great deal.
2. Set up your phone properly
Almost all recent smartphones can take great video, but it’s worth checking out the settings to make sure you’re ready to go. Your resolution settings are up to you, but full HD (1080p) is probably a good starting point, as it’ll look good but won’t fill up your phone’s storage too quickly. You can ramp it up to 4K if your phone allows it, or even drop it to 720p if you’re on an older device that won’t handle editing as well.
Read more: Best Camera Accessories for Your Phone
If you have an iPhone 16 Pro, 15 Pro or 14 Pro and plan on doing a lot of post-production on your footage in software like Adobe Premiere or DaVinci Resolve, you can consider shooting in Apple’s ProRes format. This gives you the best image quality, but the file sizes are immense, so if you want to keep things simple then it’s better to shoot in the standard video mode.
If you have the latest iPhone 16 Pro or iPhone 15 Pro you could take things further and shoot in Log. Log is a color profile that looks very low-contrast out of camera, but gives much more flexibility for adjusting the contrast, colors and overall look of the footage in post. Applying these edits is a process called color grading and it’s often what separates professional, Hollywood movies from everyday home videos. If you want to create a truly cinematic, professional look to your video, then shoot in Log and color grade your footage in DaVinci Resolve on your desktop or iPad.
It’s worth keeping an eye on your storage though, especially if you’re away from home for a while; you don’t want to fill up your space on the first two days of your trip only to have no room to capture the rest of the vacation. Those of you shooting ProRes Log on your iPhone 15 or 16 Pro can now attach an SSD using USB-C for saving those huge files directly to external storage.
3. Keep your video clips short and sweet
While it’s easy to stand and film a five-minute clip of someone peeling potatoes for dinner, the reality is that when you watch that back, you’ll realize it’s way too long to remain interesting. Instead, consider keeping each clip to around 15-20 seconds in length. You might be surprised at how long 15 seconds of video actually seems like when you watch it back, and having lots of shorter clips cut together will give the video a more engaging, more professional feel.
If you’re walking up through a beautiful mountain trail, consider shooting 20 seconds of footage at 5- or 10-minute intervals — or only at particularly scenic viewpoints — rather than just filming the whole way up. But make sure you’re ready to capture interesting or funny moments as they happen as it’s these personal moments that you’ll enjoy looking back on down the line.
4. Stabilize your phone
There’s nothing that can ruin a video quite as easily as shaky hand-held footage. If your phone has a stabilized video mode, make sure it’s turned on. If not, consider using a small tripod to keep your phone steady. This of course also allows you, the filmmaker, to be involved in the action as well, which is great if you’re the one doing the cooking, or handing out presents.
You could even consider carrying a small mobile gimbal like the DJI OM 5. It allows you to get rock-steady footage even as you’re walking along, while the built-in selfie stick lets you film yourself more easily or capture more interesting angles for your footage than if you were just hand-holding your phone. If you’re interested in taking your mobile movie-making a bit more seriously then check out some of the best accessories you can pair with your phone to improve your footage.
5. Get creative with angles
A great way to improve the cinematic qualities in your film is to experiment with different angles. Say you’re capturing the moment your child takes a present from under the tree at Christmas — don’t just film them from your standing position nearby, but instead consider how you can capture that moment in a more exciting way. Perhaps even put the phone inside the tree, among the presents, so you see your child reaching toward the camera to retrieve their gift.
There’s no end to the ways you can play with your angles, so have a think about how you can shake things up. You can always try to reshoot certain things from multiple angles (or set up a spare phone or camera for another angle) and then cut them together in your video editor afterwards. In my video, for example, I wanted to show the cinnamon and ginger being thrown into the pot, so I used two angles: one from a first-person perspective looking into the pot, and another where I’d positioned my phone behind the pot to show me throwing the ingredients in. It’s little elements like this that can make a big difference overall.
6. Improve the audio and lighting
If your video will include people talking to the camera — perhaps your friends telling the camera where you are in the world or explaining how badly they’ll need a beer after the long hike — you’ll want to make sure your phone can capture that audio clearly. For the best results, consider buying a small external microphone like the Rode VideoMicro, which plugs into your phone’s power port, via an adapter, and will dramatically improve the sound quality.
Read more: Best Accessories for Better Video
If you don’t want to invest in extra gear there’s still a lot you can do to help. Turning off or at least lowering background music or closing the doors to drown out kitchen appliances will make a huge difference in how clear those voices can be captured. Outdoors, your biggest enemy for good audio will be the wind. There’s not always much you can do about it but at least trying to turn your back to the wind and providing a buffer between it and your phone will go some way to minimizing the problem.
Lighting is crucial too, and if you’re filming indoors in dimly lit spaces, then adding in your own light well help keep your footage looking good. I’ve outlined various LED light sources in my guide to video accessories, but one of my favorites for video production is the Zhiyun Fiveray FR100C light stick, which is easily hand-held and can produce any color you want, making it easy to get creative.
7. Experiment with slow motion and time lapses
Most recent phones have modes for taking slow motion video and for time lapses and both can be great tools for your video. Of course, it needs to make sense to use them — slow motion to slow down fast-paced action, and time lapse to speed up a long sequence.
In my mulled cider video, I used slow motion when lighting the stove to give a cinematic quality to the flames erupting, and I also slowed down the footage of me throwing ginger into the pot to get a great slow-mo effect on the cider splashing up. As it’s a short sequence it didn’t make a lot of sense to do a time lapse, but if you want to capture the whole process of making dinner, for example, a time lapse from high up in your kitchen, videoing you moving around over maybe a couple of hours would be a neat addition to a holiday film.
8. Edit your video
Once you have your video clips it’s time to piece them together. This can be the most challenging part, especially for those of you who are totally new to video production. Thankfully, there are easy ways of doing things.
Some phones, like the iPhones, as well as recent Samsung Galaxy phones, have built-in auto video makers that allow you to select some clips and automatically cut them together into a film, complete with background music and transitions between clips. They’re not always the most elegant of productions, but they’re worth keeping in mind if you’re a total beginner and just want a basic video put together to send to your family or friends.
Alternatively, look towards apps like BlackMagic’s DaVinci Resolve, which is free on the iPad (as well as on Mac or PC), with only some advanced features requiring a paid upgrade. It’s an incredibly well-rounded video editor that’s used by creative pros around the world and is renowned for its great tools for editing colors. For a more basic approach, look towards Quik by GoPro. It’s free and also lets you drop multiple video clips into a project for the app to automatically turn into a finished film. iPhone users will also be able to use Apple’s iMovie for free, which is an extremely easy-to-use video editor, with a variety of presets and styles available. Adobe Premiere Rush has a wide variety of editing tools and is built to be mobile friendly. It’s a great app, but it does cost $10 (£9, AU$15) a month, so it’s only worth considering if you think you’ll want to do more video production.
Technologies
iPhone Battery Tanking Fast? These 3 Settings Are Probably to Blame
Struggling with short battery life on your iPhone? These simple setting changes can help.

If your iPhone feels like it’s always on the verge of dying, you’re not imagining things. Over time, every phone’s battery loses its ability to hold a charge-but that doesn’t mean you have to live tethered to a charger. Even if your iPhone is a few years old, there are simple setting tweaks you can make right now that can noticeably extend your battery life. You might be surprised how much longer your phone lasts with just a few smart changes.
Whether you’re using your phone to get directions, stream music, or send that one last text, the last thing you want is for it to shut down at the worst possible moment. Instead of scrambling for a charger or switching on Low Power Mode every few hours, take a minute to check your iPhone settings. Turning off a few power-draining features could be the fix your battery desperately needs-and it only takes seconds to do.
You can also keep an eye on your Battery Health menu — it’ll tell you your battery health percentage (80% or higher is considered good), as well as show you how many times you’ve cycled your battery and whether or not your battery is «normal.»
We’ll explain three iOS features that put a strain on your iPhone’s battery to varying degrees, and show how you can turn them off to help preserve battery life. Here’s what you need to know.
Turn off widgets on your iPhone lock screen
All the widgets on your lock screen force your apps to automatically run in the background, constantly fetching data to update the information the widgets display, like sports scores or the weather. Because these apps are constantly running in the background due to your widgets, that means they continuously drain power.
If you want to help preserve some battery on iOS 18, the best thing to do is simply avoid widgets on your lock screen (and home screen). The easiest way to do this is to switch to another lock screen profile: Press your finger down on your existing lock screen and then swipe around to choose one that doesn’t have any widgets.
If you want to just remove the widgets from your existing lock screen, press down on your lock screen, hit Customize, choose the Lock Screen option, tap on the widget box and then hit the «—» button on each widget to remove them.
Reduce the motion of your iPhone UI
Your iPhone user interface has some fun, sleek animations. There’s the fluid motion of opening and closing apps, and the burst of color that appears when you activate Siri with Apple Intelligence, just to name a couple. These visual tricks help bring the slab of metal and glass in your hand to life. Unfortunately, they can also reduce your phone’s battery life.
If you want subtler animations across iOS, you can enable the Reduce Motion setting. To do this, go to Settings > Accessibility > Motion and toggle on Reduce Motion.
Switch off your iPhone’s keyboard vibration
Surprisingly, the keyboard on the iPhone has never had the ability to vibrate as you type, an addition called «haptic feedback» that was added to iPhones with iOS 16. Instead of just hearing click-clack sounds, haptic feedback gives each key a vibration, providing a more immersive experience as you type. According to Apple, the very same feature may also affect battery life.
According to this Apple support page about the keyboard, haptic feedback «might affect the battery life of your iPhone.» No specifics are given as to how much battery life the keyboard feature drains, but if you want to conserve battery, it’s best to keep this feature disabled.
Fortunately, it is not enabled by default. If you’ve enabled it yourself, go to Settings > Sounds & Haptics > Keyboard Feedback and toggle off Haptic to turn off haptic feedback for your keyboard.
For more tips on iOS, learn how to download iOS 18 and how to automatically delete multifactor authentication messages from texts and emails.
Technologies
Today’s NYT Mini Crossword Answers for Sunday, June 1
Here are the answers for The New York Times Mini Crossword for June 1.

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 is pretty simple. 6-Across threw me off, but when I filled in the other answers, it came together. 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: Late-night show V.I.P.
Answer: HOST
5A clue: Island that’s home to Waimea Canyon, a.k.a. the Grand Canyon of Hawaii
Answer: KAUAI
6A clue: Online notice to pay utilities
Answer: EBILL
7A clue: Action figure inducted into the National Toy Hall of Fame
Answer: GIJOE
8A clue: Suffix with Kazakh and Kyrgyz
Answer: STAN
Mini down clues and answers
1D clue: Repeated activity
Answer: HABIT
2D clue: Spiritualist’s board
Answer: OUIJA
3D clue: Business with stylists
Answer: SALON
4D clue: Material for much signage in the N.Y.C. subway system
Answer: TILE
5D clue: Big beer barrels
Answer: KEGS
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.
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