Hey Ray! Explaining How 'Invisibility' Can Be Possible
Light lets us see things, but did you know light can make things disappear, too? Meteorologist Ray Petelin has a simple experiment that shows this in action.
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Light lets us see things, but did you know light can make things disappear, too? Meteorologist Ray Petelin has a simple experiment that shows this in action.
Pittsburgh has seen a lot of different weather on Christmas Day. KDKA Meteorologist Ray Petelin and his daughter Elizabeth take a look back at some of the notable weather to hit Pittsburgh on Christmas Day.
The reason some things float, and others don't is explained by the Archimedes Principle. This week, Meteorologist Ray Petelin shows us how small changes in an object can make a big difference in how buoyant that object is.
Meteorologst Ray Petelin finds out how to spot black ice, how to more safely drive on it, and what to do if you start to slide.
Candles are neat, calming to some and full of science.
Train conductors and orchestra conductors are great, but we are going to learn more about heat conductors.
Math is a great prediction tool. You can even used grids disguised as card tricks to predict where a card will be. This week, Meteorologist Ray Petelin shows us what he calls a "Raymix" of a math-based card magic trick he showed us in one of the first Hey Ray segments.
After tornadoes hit our area, I get some very good questions, and hear some untrue myths. One of them is the misconception that tornadoes don't form near mountains, valleys or lakes.
Water and electricity should never mix. I think everyone knows that. In this experiment, though, we are going to do an experiment with static electricity and water. All we need is a balloon, a gentle stream of water, and some hair.
Many people love the fall because of the colors foliage becomes before they drop their leaves.
When you hear the word halo, you may think of an angel. The topic here is halos, but these ones are in the sky, and something I get asked about a lot.
I have a new problem this week. I need to get a round coaster through a square hole without ripping the paper.
I had a bit of a problem. I needed to fit my entire body through a hole in a standard piece of printer paper. While this isn't a real problem, it is a fun way to show how the perimeter and area of something is related.
Sometimes, seemingly real things on the internet turn out to be fake, and sometimes seemingly fake things on the internet turn out to be true.
We have discussed gravity in a couple different experiments. This time, I am going to show you something that may seem almost impossible to do.
Have you ever been sitting around a campfire, get up and move, only to have the smoke you were trying to avoid follow you? Well, as Ray Petelin explains, there's a scientific reason for that!
Whether you call it pop or you call it soda, there's a way to make the can go pop without cracking the tab! Ray Petelin shows you how in a new Hey Ray!
Spots on the Sun's surface can tell us a lot about what is going on with the Solar Cycle. Ray Petelin explains why they're important to watch in a new Hey Ray!
You may have heard us talk about "meteorological seasons" that don't match up with the seasons you typically see on the calendar. While that may sound weird, there is a reason meteorologists use these different dates. Ray Petelin explains in a new Hey Ray!
One viewer wrote in to ask Ray Petelin, why do storms have different names around the world? Well, while it's true they do go by different names around the world, they're still the same kind of storms.
As summer winds down, we start to reach the peak of hurricane season, which leads to a lot of questions of how hurricanes form. Ray Petelin explains in a new Hey Ray.
Some kind of clouds can help predict the weather.
If you've ever wondered how hurricanes get their names, KDKA First Alert Meteorologist Ray Petelin is here to explain how!
We use salt for so many things these days, but did you know that it can be used to make ice cream? Ray Petelin shows you how in an all-new Hey Ray!
One of the coolest things to see in the summertime happens from late July through late August.
Each Halloween, when the workers from Allegheny Window Cleaning head to UPMC Children's, it's a chance to brighten the day.
Gov. Josh Shapiro is freeing up around $5 million to help feed Pennsylvania residents impacted by the lapse in SNAP benefits.
Whether it's Rite Aid, the old stadiums, or even the Original Hot Dog Shop, Yinzers are remembering Pittsburgh's past on Halloween.
Halloween is just around the corner. Here's when kids can head out to trick or treat around the Pittsburgh area.
When SNAP benefits expire because of the federal government shutdown, hundreds of thousands of Western Pennsylvanians will struggle to afford food.
The city controller said Pittsburgh Public Schools could save millions of dollars by changing the way it hands out contracts.
The retention of three Pennsylvania state Supreme Court justices is drawing an unusual amount of attention — and cash.
As the Pennsylvania legislature continues to fail to pass a budget, the squeeze is being felt by students and teachers throughout.
The Pennsylvania state budget impasse could lead to furloughs at the Westmoreland Immediate Unit.
Officials from half the states and the District of Columbia are asking a federal judge to order the Department of Agriculture to provide food stamp benefits for November.
People in Pennsylvania are being alerted to a new scam targeting those who receive SNAP benefits.
Heritage Valley Health System is merging with Allegheny Health Network.
The answer is you have to change to survive and you have to recognize the need to stay ahead of the curve.
Shake Shack is continuing its expansion into western Pennsylvania.
The Community Supermarket in the Heights Plaza Shopping Center is closing.
Who helped Peter’s Pan Shadow steal Tinkerbell’s pixie dust? Viewers voted.. and Boaz reveals the answer!
It’s not a holiday show without DJ Petey C! He challenges Team PTL to a game of “Name that Tune…and Stay Young!”
In honor of the crocodile character in Peter Pan, Grant Kemmerer from The Wild World of Animals brought the real thing, an alligator named “Jr.”, plus a special guest!
The team from Pittsburgh Sword Fighters teaches Peter Pan & David how to defend themselves … so they don’t have to walk the plank!
We’ve seen some tricks, now bring on the treats! Cozy Cottage Bakery joins Peter Pan & Captain Hook in the PTL Kitchen!
Campers who bought lifetime memberships to a Laurel Highlands campground say they are being told they have to leave.
Proposed data centers are getting pushback over environments impacts and energy costs.
People rallied to try and save both jobs and medical care at the only Allegheny Health Network facility in New Kensington.
The Jewish Federation of Greater Pittsburgh is responding after learning a swastika and what appears to be a German war eagle were found tiled into the floor of a Beaver County home.
Some Pittsburgh-area towns accuse one mall owner of deliberately running down his properties.
In the most recent round of required testing, the city found a historic low in lead levels in drinking water.
The David L. Lawrence Convention Center once again played host to anyone in need of care.
Maybe you have a drawer full of fitness equipment you forgot about like resistance bands, jump ropes, and other various at-home exercise gear, but Aubrey Worek is here for another Fitness Friday to show you, Heather, and David how it can be put to use!
We're sitting down with Dr. Brenda Mendizabal, of UPMC Children's Hospital of Pittsburgh, about ultra-processed foods. What are they and how you and your kids can eat healthier.
Normally, this time of year, you see orange pumpkins, but if you see pink ones in Pittsburgh, know it's for a good cause.
The USGA said that visitor spending accounted for at least $111 million of the total impact the U.S. Open brought to Pennsylvania.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
The boys won their third straight WPIAL championship. It was the first ever WPIAL title for the girls' team.
Bryan Rust had a goal and an assist, Tristan Jarry made 26 saves and the Pittsburgh Penguins beat Minnesota 4-1 to hand the Wild their fifth straight loss.
Last week, the home of the Pittsburgh Steelers, Acrisure Stadium, was named one of the most haunted stadiums, but why?
Steve DeFrank, chairman of the Pennsylvania Public Utility Commission, says there's a right way and a wrong way when it comes to data centers.
Community members have packed into borough council and planning commission meetings in recent weeks with opposition to the proposed data center.
Eos Energy announced a major investment in its operations in the Pittsburgh region.
The changes include prohibiting the use of high-pressure water for cleaning valves as they review best practices.
Heritage Valley Health System is merging with Allegheny Health Network.
Wallen's 2026 tour will stop in Pittsburgh on June 5 and 6, 2026, at Acrisure Stadium.
June Lockhart, the actor best known for her role as the matriarch in the TV series "Lassie", has died, her family spokesperson said Saturday.
Actors Jeremy Renner and Edie Falco preview season four of "Mayor of Kingstown" on "CBS Mornings" and talk about working together for the first time.
Michael Keaton was in the Strip District on Monday for the inaugural induction ceremony at Pittsburgh's Walk of Fame.
Limp Bizkit, with roots in Jacksonville, Florida, emerged in the late 1990s with a sound that melds alternative rock, heavy metal and rap.
Back for another performance, the Bill Henry Band joins Talk Pittsburgh once more, this time performing the song "Witchcraft."
Stay on top of local weather with meteorologist Trey Fulbright’s forecast!
It's a Halloween tradition at UPMC Children's Hospital, when the window-washers come to work, they're doing more than just keeping the windows clear. KDKA's Chilekasi Adele has more on this "super" work.
Who helped Peter’s Pan Shadow steal Tinkerbell’s pixie dust? Viewers voted.. and Boaz reveals the answer!
It’s not a holiday show without DJ Petey C! He challenges Team PTL to a game of “Name that Tune…and Stay Young!”
Mason Heintschel set a new Pitt freshman single-game passing record in the Pitt win at Acrisure Stadium.
The 44th annual KDKA-TV Turkey Fund will help our neighbors in need have a nice meal for Thanksgiving.
West Virginia scored a late touchdown to tie the game and then beat Pitt in overtime to win the 108th Backyard Brawl.
Eli Holstein threw for 304 yards and 4 touchdown passes in the 45-17 Panthers' win over the Chippewas.
Spaun made a thrilling 64-foot birdie putt to win the U.S. Open at Oakmont Country Club.
