New York City’s aging subway cars are having a hard time keeping up with extreme heat, reports Ramsey Khalifeh in Gothamist, with the MTA receiving thousands of complaints about temperatures on the trains each summer.

The system’s three hottest lines (those with the most complaints) use some of the oldest subway cars. Line 1, which runs from the Battery to the North Bronx, received 2,934 complaints between 2020 and mid-July 2024. According to Gothamist’s own recon, two different 1 train cars clocked temperatures of 92 and 93 degrees. “Both were in service without functioning AC’s, but neither were reflected in the MTA data for having a high number of hot car complaints.”

Khalifeh writes that “The MTA plans to replace all those aging train cars in the coming years through its new capital plan, but riders are stuck with unreliable cooling systems in the meantime.” 

• New York City
• Public Transit
• Extreme Heat
• Heat
• Subway
• Metropolitan Transportation Authority

The Cleveland Metropolitan School District (CMSD) will start including bike safety education in its gym classes in a collaboration with Bike Cleveland, reports Michael Indriolo for Signal Cleveland.

“For Bike Cleveland’s project, the organization will train gym teachers on a bike-focused curriculum. Bike Cleveland made the curriculum to be taught over three or four weeks, with lessons ranging from learning to ride a bike to guidelines for staying safe on the road,” Indriolo adds.

The city is also adding a new separated bike lane to a three-mile segment of East 55th Street with funding from a state Safe Routes to School grant program. Cleveland recently introduced its five-year Cleveland Moves transportation plan, which outlines efforts to upgrade pedestrian infrastructure and build an interconnected bikeway network across the city.

• Cleveland
• Bike Safety
• Bikeways
• Bike Infrastructure
• Protected Bike Lanes
• Bike Lanes
• Safe Routes to School
• Bike Education

A mother lemur leaps across the rugged limestone cliffs near Tsingy de Bemaraha National Park in western Madagascar. Her daring jump would be impressive on its own, but she’s carrying a passenger: her only weeks-old baby. Photographer Zhou Donglin captured the moment (seen below) and took home the top prize at the BigPicture 2025 awards.

BigPicture began in 2014 and has received more than 64,000 images from photographers around the world since launching. The competition honors photographers across multiple categories, including Aquatic Life, Terrestrial Wildlife, Winged, and Human/Nature.

Scroll to see our favorite wildlife images from this year’s contest and visit BigPicture for the full list. (Click images to enlarge to full screen.)

The post 12 compelling wildlife photographs from BigPicture 2025 appeared first on Popular Science.

A four-pack of Apple AirTags will cost you at least $80 on a typical day. But today is part of Amazon’s Prime Day sale (running till July 11), and you can get a four-pack for just $67.31 while supplies last. That’s the lowest price I have personally seen. You’ll need an Amazon Prime account to take advantage of this deal, though, so make sure you’re signed up to get the savings.

Apple

You likely already know how the Apple AirTags works, but for the uninitiated, these tiny devices use Apple’s FindMy technology to keep tabs on their location. I keep one on my keys because I lose them all the time, one in my backpack, and one in my camera bag because it’s full of expensive gear. They run on small button batteries that only need replacing once or twice per year.

They’re easy to stash and even make a sound if you need to find them. I use mine to find my keys at least once per week because I put them down somewhere stupid.

Apple

While I personally think it’s a better idea to grab the four-pack, you can get a single AirTag for just $20 right now. That’s the lowest price I have seen on a single tag since last Black Friday. They typically sell for around $25.

Belkin

I’m picking up a couple of these Belkin AirTag holder cases to go with my current AirTags. I was using the official Apple leather AirTag case for a while, but it broke down over time and it’s expensive to replace. This Belkin model has a unique twisting lock system that keeps the AirTag safe and secure inside.

While you’re buying new Apple stuff, go snag yourself a pair of AirPods Pro 2 for just $149 right now.

The post We’re stocking up on Apple AirTags with this four-pack for just $63.71 at Amazon for Prime Day appeared first on Popular Science.

You can never have too many tools. Right now, Amazon is in the midst of its massive annual Prime Day sale, which runs through July 11, and the retailer has dropped prices across the board on just about every DeWalt power tool you would want. The sale also includes accessories and tool belts, so you can complete your tool kit or just make a really convincing Bob the Builder cosplay. Remember, if you don’t have an active Amazon Prime subscription, you can sign up for a free 30-day trial here.

I expect more DeWalt deals to come into play as the shopping holiday goes on, so I’ll update with new discounts here as I see them.

DeWalt

Even if you have a full kit of power tools, this is a great buy as a backup to keep in your home, camp, truck, or wherever else you might need a tool. The kit includes a drill for making holes, a driver for putting in screws, and a powerful flashlight so you can see what you’re doing. You get a pair of batteries and a charger, as well as a carrying case in which to lug everything around. This is a fantastic gift for just about anyone who is even curious about building things or taking on home improvement projects.

DeWalt

If you want to have an instant power tool collection, this is a great way to start. This five-tool kit includes A pair of batteries, a circular saw, a reciprocating saw, an oscillating tool, a drill, and a driver. Plus, you get a charger and a burly carrying case. You could demolish and rebuild just about anything with this kit, a box of screws, some wood, and an old shop radio playing classic rock.

DeWalt

For $50, you really can’t beat this deal. It offers a total of 84 pieces, including a set of fastening bits, SAE and metric sockets, a ratchet, and a screwdriver with interchangeable tips. This is a great gift for anyone who works on cars or anything mechanical.

DeWalt

If the 84-piece set isn’t robust enough, move up to this 200-piece kit. It includes full sets of sockets, more driver bits, more ratchets, a full set of combination wrenches, and even two sets of Allen keys. I have something very similar in my truck at all times after buying it during last Prime Day. I can’t believe how often it has come in handy.

• DEWALT 20V MAX Cordless Drill and Impact Driver, Power Tool Combo Kit with 2 Batteries and Charger (DCK240C2) $129 (was $259)
• Dewalt 61147S 3300 PSI 2.4 GPM Gas Cold Water Pressure Washer $359 (was $499)
• DEWALT 20V MAX XR Oscillating Multi-Tool Kit $119 (was $304)
• DEWALT Shop Vacuum Wet and Dry, Cordless and Corded Wet Dry Vacuum Cleaner Shop Vac 20V MAX, Portable Shopvac, Tool Only $119 (was $195)
• DEWALT 20V MAX Circular Saw Cordless with Brake, 7-1/4 Inch, Tool Only $139 (was $279)
• DEWALT 20V MAX Orbital Sander Cordless, 5-Inch Sander Tool, 2.Ah, 8,000-12,000 OPM, Variable Speed Dial, Storage Bag, Battery and Charger Included $149 (was $249)
• DEWALT 20V MAX* Angle Grinder Tool Cordless Brushless, 4 1/2 Inch, with Paddle Switch and Kickback Brake, Tool Only $140 (was $249)
• DEWALT 20V/12V MAX Laser Level, 3 x 360, Green, Bare Tool Only (DCLE34030GB) $403 (was $609)
• DEWALT Line Laser, Self-Leveling, Cross Line, Red Beam (DW088K) $125 (was $219)
• DEWALT Stud Finder, 3/4”, Locate Framing Studs Efficiently with LED Arrows, Ideal for Wood and Metal, AAA Batteries Included (DW0100) $14 (was $17)
• DEWALT Digital Torque Wrench, 3/8 inch Drive, 20-100 FT-LB, with Storage Case (DWMT17061) $189 (was $209)
• DEWALT Reciprocating Saw Blade Set for Metal Wood Iron, 12 Piece Bi-Metal Increased Durability Blades, with Storage Case (DW4892) $22 (was $27)
• DEWALT Laser Level, 3 Spot Beam Line Laser Pointer with Built-in Magnetic Pivoting, Green (DW083CG) $156 (was $206)
• DeWalt 4-Foot Fiberglass Step Ladder, 375-Pound Load Capacity, Type IAA, DXL3410-04 $116 (was $151)

DEWALT Screwdriver Bit Set, Impact Ready, FlexTorq, 40-Piece (DWA2T40IR) $20 (was $29)

DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361) $21 (was $25)

DEWALT Professional Tool Belt Organizer With Suspenders and 25 Pockets, Heavy Duty Construction (DWST540602) $80 (was $97)

DEWALT Screwdriver Bit Set, Impact Driver and Drill Bit Set, 100-Piece (DWA2FTS100) $36 (was $58)

DEWALT Leather Tool Belt, Durable, 11 Pocket Professional Belt (DWST550112) $49 (was $72)

DEWALT FLEXTORQ Right Angle Drill Adaptor, 4-in-1 System, 12-Inch (DWAMRASETFT) $28 (was $35)

DEWALT Screwdriver Bit Set, Impact Driver Bit Set, FlexTorq, 35-Piece (DWA2T35IR) $24 (was $46)

DeWalt Impact Socket Set 1/2 Drive, 10 Piece 1/4″ to 1/2″ Impact Socket Adapter Set (DW22812) $35 (was $50)

DEWALT Door Lock Installation Kit, C-Clamp Design, For Metal or Wood Doors, 2 Adjustable Bushings, Easy Installation (D180004) $28 (was $36)

The post Amazon is clearing out DeWalt tools for the lowest prices of the year during Prime Day appeared first on Popular Science.

Remember the “good ice” trend? Those crunchy, chewable nuggets took over TikTok, making everyone acknowledge that regular ice cubes are just frozen rectangles of sadness. Now, you can live your best nugget ice life at home with the GE Profile Opal 2.0 XL nugget ice maker, which is $200 off right now. But only for Amazon Prime Day, July 8-11. Remember, if you don’t have an active Prime subscription, you can sign up for a free 30-day trial here.

GE

The GE Profile Opal 2.0 XL  isn’t just an ice maker: It’s a lifestyle upgrade that eliminates making trips to Sonic Drive-Ins, if there’s even one in your area. This model, available in Black or Moonstone Blue, cranks out up to 38 pounds of glorious nugget ice per day, with the first batch ready in under 10 minutes. No plumbing is required thanks to its attached water tank, and its advanced cleaning system keeps your ice fresh for endless chewing sessions. Plus, the SmartHQ app lets you schedule ice production, check status, and even boss it around with Alexa or Google. Your drinks will never be the same.

The post Get the ‘good ice’ for $200 off with this Prime Day deal on the GE Profile Opal nugget ice machine appeared first on Popular Science.

We’re officially in the dog days of summer, when the sweat starts the second you step outside. To work out in this heatwave, sometimes we need a little extra motivation. For the competitive ones among us, Fitbit’s friend list provides that push by showing exactly how many steps everyone else has taken today, and no one wants to end the day at the bottom. Currently, the Fitbit Charge 6 is available at its lowest price of the year for Amazon Prime Day (which runs from July 8 to 11), making it an easy way to stay active and potentially claim some bragging rights along the way. Remember, if you don’t have an active Prime subscription, you can sign up for a free 30-day trial here.

Fitbit

The Charge 6 is a gym rat’s best friend and one of the best Fitbits you can own. It records all the stats you need with automatic exercise recognition, all-day activity tracking, sleep scores, cardio fitness scores, and other advanced health metrics. Its workout intensity map uses GPS and physical data to highlight when you’re crushing it versus just cruising. Plus, it keeps you mindful between workouts with guided breathing and daily readiness scores.

The Fitbit Charge 6 works best with Android devices, and some of its features—including a workout library and personalized tips for better sleep—require a Fitbit Premium subscription.

The post Get a Fitbit Charge 6 fitness tracker right now for just $99 during Prime Day appeared first on Popular Science.

L'Ecological Data Hub (ED Hub) è un'applicazione innovativa che utilizza il GIS come strumento per la gestione e la

Planes, trains, and open-plan offices. All brutal on the ears. However, during Amazon Prime Day, running from July 8 to 11, Bose is offering a small reprieve for your sanity and your wallet. The QuietComfort headphones—some of the most solid noise-cancelers around—are going for $199 in Twilight Blue, Blue Dusk, Sandstone, Chilled Lilac, and White Smoke. That’s 45% off the usual price. Black is $229 (still 36% off). Remember, if you don’t have an active Amazon Prime subscription, you can sign up for a free 30-day trial here.

Bose

Bose QuietComfort headphones may not be the flashiest or the splashiest, but chances are that if you need them, the only fit you’re concerned about is around your ears. You buy these because you’ve been next to a coughing toddler for two hours and still have four to fly. You buy them because train announcements shouldn’t feel like jump scares. Bose’s ANC isn’t just good—it’s consistent. Flip the switch, and everything dims without feeling artificial. Call quality holds up. The 24-hour battery life stretches cross-country. And the sale price makes the choice easier. Even if you already own headphones, having these Bluetooth 5.1 cans just for travel is worth it. Think of it as a soft pillow for your ears, but one that blocks out reality.

Don’t want over-ear cans? The QuietComfort Earbuds are $129 (28% off the regular $179 price) in those same soothing colors. And yes, both include Bose’s signature active noise cancellation, which is some of the best cover from chaos that money can buy.

Bose

Also worth tossing in a tote is this Bluetooth 5.3 portable speaker that can play the hits and take a hit. The SoundLink Flex (2nd Gen) is $99 right now—34% off the $149 list—and comes in Twilight Blue, Blue Dusk, Sandstone, Alpine Sage, and Petal Pink. Think of it as Bose’s grab-and-go answer for patios, picnic blankets, and places where your phone’s speaker gives up. Rugged and rubberized, the Flex’s soft-touch silicone wraps around a powder-coated steel grille that shrugs off drops, dust, and dunks, thanks to its IP67 rating. Battery lasts up to 12 hours. Charging is USB-C. You can pair two for stereo if you want to get fancy. There’s a tear-resistant utility loop if you want to hang it from a carabiner or shower hook—just don’t overthink it. It’s a travel-ready speaker that doesn’t trade off sound for size.

• Ultra Open Earbuds, $229(was $299) in Diamond, Lunar Blue, Black, White Smoke, Moonstone Blue, Chilled Lilac, and Sunset Iridescent | Amazon | Bose.com
• Revolve+ II Bluetooth Speaker, $179 (was $299) in Triple Black and Luxe Silver | Amazon | Bose.com
• SoundLink Max Portable Speaker, $299 (was $399) in Black and Blue Dusk | Amazon | Bose.com
• TV Speaker Soundbar, $199 (was $279) | Amazon | Bose.com
• Music Amplifier, $549 (was $699) | Amazon | Bose.com
• Smart Soundbar, $399 (was $549) | Amazon | Bose.com
• Smart Ultra Soundbar, $699 (was $999) in Black and Arctic White | Amazon | Bose.com
• Bass Module 500, $399 (was $549) | Amazon | Bose.com
• Bass Module 700, $649 (was $899) in Black and Arctic White | Amazon | Bose.com

The post The $359 Bose QuietComfort noise-cancelling headphones are just $199 for Prime Day appeared first on Popular Science.

Smartphone cameras have come a long way, but they can’t go everywhere an action camera can. Right now, Amazon has the best GoPro Hero13 camera deal I’ve seen to date, dropping this kit’s price from $500 all the way to $329. This isn’t an old model, it’s the current version so you get all the best tech inside while still saving money. This will only last until stock runs out or Prime Day ends July 11, so grab one ASAP and then head out to shred some gnar. Remember, if you don’t have an active Amazon Prime subscription, you can sign up for a free 30-day trial here.

GoPro

This is the top-end offering in the GoPro lineup and the kit includes a few essential accessories that you were going to want to buy anyway. The camera itself captures 5.3K footage, which offers 91 percent more resolution than typical 4K. That allows for useful features like cropping and image stabilization during editing. GoPro has the best shake reduction in the game and it provides absurd levels of image stabilization, so even choppy mountain bike footage is watchable without making your viewers sick.

The 5.3K resolution is enough that you can pull 24-megapixel stills directly from the footage. That allows shooters to create hybrid content with ease. This kit includes a pair of long-lasting batteries, as well as a wireless shutter release remote, so you can set up the camera away from you and start filming from afar.

GoPro offers a whole arsenal of different mounts—for helmets, tripods, handlebars, etc.—and it really is the industry standard for action cameras for a good reason.

The post Get this $500 GoPro Hero13 camera bundle for just $329 during Amazon’s Prime Day sale appeared first on Popular Science.