Hey Ray! Experimenting With Rubber Bands (Part Two)
This week we are going to find out what happens when you add heat to a stretched rubber band, and just to "let the cat out of the bag", it is probably going to be the opposite of what you think!
This week we are going to find out what happens when you add heat to a stretched rubber band, and just to "let the cat out of the bag", it is probably going to be the opposite of what you think!
Sometimes there is complex science hidden in seemingly simple things. Meteorologist Ray Petelin shows us the hidden heat found in rubber bands, or gum bands as they're known around here.
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.
You may have heard that Earth is getting a mini-moon and that seems pretty cool, but will you even be able to see it? Ray Petelin is here to explain!
A viewer wrote in to ask Ray - "Why can we sometimes see the moon during the day?" The answer may not be what you think!
Withe colder air on the horizon, testing your home for Radon is very important. Ray and Elizabeth Petelin explain in an all-new Hey Ray!
We always perceive the sun to be yellow, but is it actually yellow? Ray and Elizabeth Petelin explore this question!
We've all put popcorn on the stove or in the microwave, but what is the science behind those popping kernels? Ray and Elizabeth Petelin are popping in with some science!
Western Pennsylvania is home to plenty of creeks and rivers, so how can you distinguish between the two? Ray and Elizabeth Petelin are here to explain!
One viewer asks: Why can they only hear the train whistle at Fallingwater when it's about to rain? Ray Petelin investigates this mystery in an all-new Hey Ray!
Have you ever heard that airplanes can't fly when it gets too hot? Meteorologist Ray Petelin explains why in today's Hey Ray.
If you've been on a walk or a hike on a hot summer's day, you've no doubt noticed a difference in heat and humidity from low vegetation to high vegetation. Ray Petelin explains the science behind "corn sweat."
If we use some markers, a plastic bag, and some water - we can make magic! Ray and Elizabeth Petelin have a cool experiment in an all-new Hey Ray!
The Heinz History Center is offering free admission to kids this fall.
Billionaire Elon Musk also appeared with Trump on stage, calling the November election "the most important of our lifetime."
Former President Donald Trump returned to Butler, Pennsylvania, on Oct. 5 for a rally.
Christopher Ciccone spent most of his life in Madonna's shadow - as her back-up dancer, personal assistant, dresser, decorator, art director and tour director.
As cooler fall weather settles in, it won't be long before the leaves start changing and falling into yards.
Billionaire Elon Musk also appeared with Trump on stage, calling the November election "the most important of our lifetime."
Former President Donald Trump is returning to the Butler Farm Show grounds for the first time since an assassination attempt in July. KDKA-TV has team coverage.
Democratic U.S. Sen. Bob Casey of Pennsylvania and Republican challenger David McCormick have held the first debate in their race for a swing-state seat.
Trump returned Saturday to Butler, Pennsylvania, for a rally at the site of the first assassination attempt against him.
Former President Barack Obama will be in Pittsburgh next Thursday to campaign for Vice President Kamala Harris.
Sheetz lost to rival Wawa in a convenience store customer satisfaction survey.
Want to check the latest product recalls, click here!
Skilled nursing centers in Western Pennsylvania are in jeopardy.
When it comes to imported goods at local stores amid the port strike, experts say now is not the time to panic buy.
Some are making their lists and checking them twice. We talked about some helpful holiday shopping strategies ahead of the holiday season.
That's a wrap for this week on PTL!
We have our first pictures of our new PTL puppy that will be raised to be a service dog for Canine Companions.
KDKA's own Women of Steel Cassidy Wood and Susie Cool are out with a new episode of Every Blade of Grass with Cool & Cass on YouTube. They're breaking down the Steelers and Cowboys matchup.
The Pittsburgh Gaming Expo is back at the Monroeville Convention Center. PTL's Daisy Jade checks out some of the classic games sure to spark some nostalgia.
PTL's Katie O'Malley heads to the mountains to get a preview of Seven Springs AutumnFest. They have a lot of activities planned, including axe throwing. Plus, an early look ahead to ski and snowboarding season.
Skilled nursing centers in Western Pennsylvania are in jeopardy.
A man from Beaver Falls said a check washing scam almost cost him nearly $2,000.
A rise in counterfeit airbags has inspired a new campaign for consumers.
Emergency medical services operations across the state have been in crisis
Temperatures are rising over pickleball in Cranberry Township.
A veteran and mental health advocate is trekking across the country without shoes to accomplish a feat never done before.
The Allegheny County Health Department recently released new numbers on how many kids in the county have lead poisoning.
Skilled nursing centers in Western Pennsylvania are in jeopardy.
UPMC is set to take over the operations of several MedExpress locations.
A federal lawsuit accuses UPMC of holding a monopoly over workers, and now the Department of Justice is involved.
Jahiem White ran for 158 yards and a touchdown, and West Virginia rolled past Oklahoma State 38-14.
Eli Holstein threw three touchdowns and rushed for another as Pittsburgh beat North Carolina 34-24 Saturday.
Drew Allar threw for 237 yards with a touchdown and ran for another score to lead No. 7 Penn State to a 27-11 win over UCLA.
Week 6 of Pennsylvania high school football is here.
Shortstop Ryan Cox is not your typical baseball player, in large part, because this isn't your typical baseball game.
Sheetz lost to rival Wawa in a convenience store customer satisfaction survey.
Skilled nursing centers in Western Pennsylvania are in jeopardy.
When it comes to imported goods at local stores amid the port strike, experts say now is not the time to panic buy.
The Eat'n Park in Bridgeville is looking to fill dozens of positions before reopening in the coming weeks.
PPG Paints Arena, UPMC Cooper Fieldhouse, and other venues will play host to multiple championships and tournaments.
Christopher Ciccone spent most of his life in Madonna's shadow - as her back-up dancer, personal assistant, dresser, decorator, art director and tour director.
John Amos was best known for his roles in "Roots" and the 1970s sitcom "Good Times."
Sony's PlayStation Network went down, frustrating gamers around the world who complain they weren't able to sign in to their accounts.
There are five new stadium dates for next summer in Toronto, Chicago, New Jersey, Los Angeles and Mexico City.
Kris Kristofferson, a songwriter who became a country star and A-list actor, died at his home on Maui surrounded by family on Saturday, a spokesperson said in an statement.
A veteran and mental health advocate is trekking across the country without shoes to accomplish a feat never done before. KDKA-TV's Alexandra Todd has more.
KDKA-TV's Jon Delano talks to Michael Johnson, the author of "Fixing Congress."
Get the latest weather updates with First Alert Meteorologist Trey Fulbright's forecast.
This week's edition of Intersections with Lisa Smith.
KDKA-TV's Ricky Sayer reports.
Former President Donald Trump returned to Butler, Pennsylvania, on Oct. 5 for a rally.
What will you be for Halloween? Here are some of your favorite KDKA anchors and reporters in their costumes to give you inspiration.
Ahoy Team PTL! For the third year in a row, we kicked off the KDKA-TV Turkey Fund with the PTL Gateway Clipper Cruise. The weather may have taken a stormy turn, but we made the most of it all to support a great cause.
The course underwent extensive renovations ahead of next June's tournament.
Pitt came back from a 10-point deficit in the 4th quarter.