Hey Ray! Using Pizza Pies To Explain Pi Day
Pi Day is coming up, so what exactly is Pi? Meteorologist Ray Petelin has a tasty look at this famous number.
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Pi Day is coming up, so what exactly is Pi? Meteorologist Ray Petelin has a tasty look at this famous number.
The cereal in your cupboard may be magnetic! Meteorologist Ray Petelin shows us why that is.
You may have wondered where a cold draft is coming from, or wanted to convince a teenager to wear a coat on a cold, winter day. This week, Meteorologist Ray Petelin show us how thermal imaging is a great way to see, and show, where heat is escaping, AND tries to use it to convince a teenager to bundle up!
Have you ever noticed snow sparkling during a very cold night or morning? There are some cool processes in action to make that happen. Meteorologist Ray Petelin shows us how "sparkle snow" forms.
Have you ever heard anyone say "It is too cold for snow"? It is an old notion, but can it REALLY be too cold for snow? Meteorologist Ray Petelin has the answer!
I got asked, Hey Ray...Explain upsloping? It is a word meteorologists in the area use a lot during winter because winter is the season where upsloping's impacts are most noticeable.
It is pretty basic knowledge that the Sun is much bigger than the Moon. Meteorologist Ray Petelin explains that they appear the same size in the sky because of some cool, mathematical coincidences.
Did you know your shadow is longer in the winter than in the summer? Meteorologist Ray Petelin explains why.
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.
It used to be said that video games were bad for you, but they have become the building blocks of some pretty cool things, including KDKA-TV's new studio! Ray Petelin explains in a new Hey Ray!
A viewer noticed a "hole" in the clouds in the sky, and in this edition of Hey Ray, Ray Petelin explains how these form!
When it's hot, you're always looking for a way to cool off, but did you know you can give your heat to other objects? Ray Petelin explains in a new Hey Ray!
Security cameras can pick up some interesting things, and there is one thing that shows up on cameras that Meteorologist Ray Petelin gets asked about a lot, and today he has the answer.
Summer officially begins on Sunday morning in Pittsburgh, and Ray Petelin is here to break down the "summer stats" for you!
You may know that Ray Petelin considers himself a "Bird Nerd." Today, he is going to show you how to get hummingbirds to come over for a close-up visit!
Coffee is a morning staple for many, and one viewer's coffee comes with a concert built in. Meteorologist Ray Petelin explains why her coffee starts sounding weird!
Sometimes, you look up to the sky, and you see something weird. Other times you look down from up in the sky and you see something extremely weird! That happened to Edna. Pilot's Glory, Glory of the Pilot, or Pilot's Halo — whatever you want to call it, Ray Petelin has an explanation.
A viewer asks, if it's raining outside, but the humidity gauge only reads 74%, shouldn't it be 100%? Ray Petelin has the answer in a new Hey Ray!
The Moon is spherical like Earth, so why do we only see one side of it? Meteorologist Ray Petelin has the answer.
High temperatures could return to the 80s on Wednesday.
Chris "Block" Gordon, a popular TV personality and drag racer, was killed in a "devastating" crash at a raceway in Ohio, authorities said.
San Francisco 49ers owner Jed York has pleaded no contest to two misdemeanor charges in Northeast Ohio after being arrested on suspicion of engaging in prostitution over the weekend, authorities said.
A federally funded Ohio manufacturing program faces potential shutdown after a new audit by the U.S. Department of Commerce's Office of Inspector General.
Nick Gonzales led off the 12th inning with an RBI single and the Pittsburgh Pirates snapped their three-game skid with a 3-2 victory over the San Diego Padres.
The U.S. and Canada have wrangled for decades over trade, and somehow, they still managed to remain friends, allies and trading partners.
Veteran organizations and businesses are asking state legislators to pass a bill allowing them to keep their so-called "skill-game" machines.
"We've seen too many developers who are trying to bulldoze our community," Pennsylvania Gov. Josh Shapiro told "CBS Mornings."
Pennsylvania Gov. Josh Shapiro on Tuesday said he's instituting what he calls the strictest data center guardrails in the country.
On Tuesday, Pennsylvania took a major step in the fight against the negative impacts of social media, particularly on children.
The store is expected to open sometime next year.
Buffalo Township police are warning about scammers after investigating several cases where residents have fallen victim.
On Tuesday, Pennsylvania took a major step in the fight against the negative impacts of social media, particularly on children.
While the importance of the family support system is timeless, a new study found it creates financial stressors for all involved.
The store will be located at the North Hills Village shopping center along McKnight Road.
Boaz loves cookies, so on his last day, we had Inside Out Cookie surprise him with lots of sweet treats.
Since Boaz loves making songs, producers Teddy and Maria made him a goodbye song for his last day.
The Humane Animal Rescue of Pittsburgh brings its education ambassador, Vedder, for Boaz's last day.
Heather and David talk about their weekends, and Boaz joins them for his last day at KDKA.
Daisy visits The Frick Pittsburgh Museums & Gardens to check out their newest exhibition!
A downed power line turned a Kittanning family's front yard into a dangerous scene.
More than 300 Pittsburgh Public Schools buses are equipped with AI-enabled Bus Patrol cameras.
The Bob O'Connor Golf Course has been run by a nonprofit with a charitable mission, but the course has been losing money.
KDKA Investigates has received several concerns about the integrity of the bridge, leading to an eight-month investigation into how safe the bridge is.
Going to college was once considered a very safe investment, but with tuition soaring, is it still worth the price tag?
Injuries are a part of many sports, and UPMC is trying to help high school athletes get back to the games they love.
More than three years later, we're beginning to learn about the health impacts of the Norfolk Southern train derailment in East Palestine, Ohio.
Several waterways across Pennsylvania tested high for E. coli, environmental groups said.
The Pennsylvania measles outbreak isn't slowing down, and one local doctor said Pittsburgh is not immune.
The countdown to the first day of school is on, and now is the time to start making some adjustments.
Nick Gonzales led off the 12th inning with an RBI single and the Pittsburgh Pirates snapped their three-game skid with a 3-2 victory over the San Diego Padres.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
San Francisco 49ers owner Jed York has pleaded no contest to two misdemeanor charges in Northeast Ohio after being arrested on suspicion of engaging in prostitution over the weekend, authorities said.
Mark Kulbis is also facing misdemeanor counts of involuntary manslaughter and reckless endangerment in the death of Calvin "CJ" Dickey Jr.
A Fayette County soccer organization is seeking help from the community after its soccer fields were vandalized.
A federally funded Ohio manufacturing program faces potential shutdown after a new audit by the U.S. Department of Commerce's Office of Inspector General.
Gas station giant Buc-ee's has sparked a backlash in Ohio over one of its frequent trademark infringement lawsuits.
The international fashion retailer Zara will open a location in Ross Park Mall in 2028, as the mall continues to thrive.
Some Bloomfield business owners paint a nuanced picture of how the annual Little Italy Days festival impacts them, saying that while they don't dislike the festival, they do make less money than they normally would.
The store is expected to open sometime next year.
Bret Michaels is taking a break from touring to recover from recent surgeries.
The Jonas Brothers are returning to Pittsburgh later this year.
Hayden Panettiere, who starred in "Remember the Titans" as a child actor and rose to fame in the series "Heroes," has died at the age of 36. The coroner's office says she was found in cardiac arrest.
The tour will be coming to Acrisure Stadium on May 8, 2027.
The popular vocal quintet Pentatonix is returning to Pittsburgh this holiday season.
Get the latest weather forecast from KDKA-TV First Alert Meteorologist Ron Smiley!
Sammie Coates helped an Alabama high school football team win for the first time since 2015.
KDKA-TV's Bob Pompeani and 93.7 The Fan's Andrew Fillipponi discuss today's sports topics.
Talks between Iran and Oman on future management of the Strait of Hormuz are set to continue Tuesday. The two countries have negotiated for weeks over a new system to manage commercial shipping traffic through the vital waterway, with the notion of fees being imposed a recurring theme.
The Black Political Empowerment Project and the Greater Pittsburgh Coalition Against Violence called on the immediate expansion of the region’s Community Violence Reduction Initiative funding to put more boots on the ground.
Mike Tomlin stepped down as head coach of the Pittsburgh Steelers after 19 seasons with the team.
Pitt's regular season has ended with an 8-4 record.
Pitt's five-game winning streak came to an end with a 37-15 loss to Notre Dame.
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.
