Hey Ray! Conductors, Copper, Coils, And Candles
Train conductors and orchestra conductors are great, but we are going to learn more about heat conductors.
Watch CBS News
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.
The atmosphere has weight. The near average weight is 14.7 pounds per square inch. That means every square inch of your body, on average, has 14.7 pounds of atmosphere pushing on it.
Shadows are pretty much an everyday or every night occurrence. Since light travels in a straight line, when something gets in the way of that path, it creates an absence of light, or a shadow.
Have you ever had to get an MRI? That is the loud machine with a very powerful magnet that can make images of the inside of your body.
The night sky is full of amazing things during the summer! One thing that peaks in August is the Perseid Meteor Shower, and it can be one of the biggest celestial highlights in the summer.
When people refer to heat lightning, they are usually talking about seeing lightning, but not hearing thunder in the evening or nighttime, usually during the summer months.
It's common to see icicles hanging from roofs or awnings, but can they form sideways? The Barton Family saw just that, and Ray Petelin explains how it may have happened!
When rivers, lakes, and ponds freeze over, it's natural to want to go play on them, but checking them for safety is important. Ray Petelin explains what you need to do to make sure you don't fall through.
When we get large snowfalls, the same question gets asked - why is snow white but when it melts, it's clear? Ray Petelin answers that in a new Hey Ray!
KDKA meteorologist Ray Petelin uses science to debunk some popular conspiracy theories.
Places, people, and things have a variety of reasons for why they are named the way they are, but have you ever thought about why the Arctic and Antarctic have their names? Ray Petelin has and he explains it in a new Hey Ray!
Whenever snow falls in Pittsburgh, you hear the same refrain: milk, bread, and toilet paper, but do we really need to have those in our home? Ray Petelin makes sure you know how to prepare when snow is coming!
While we may dream of a White Christmas in the 412, the weather is often much more interesting than that. Ray Petelin explains in a new Hey Ray!
Every generation when they get older love to brag about how much snow they had to deal with as a kid, but which Pittsburgh generation has the bragging rights? Ray Petelin breaks it down!
Did you ever notice your breath can heat and cool things? Meteorologist Ray Petelin shows us the science of how that works!
You certainly know the dark color of pop, but did you know you can use milk to take the color out of it? Ray Petelin shows you the science in a new Hey Ray!
More than 16,000 people shaped this redesigned plan, the agency said, which is an update to its 2023 Bus Line Redesign.
Investors are recoiling as the war in Iran intensifies, driving up global oil prices. "Global financial markets are in disarray," one Wall Street analyst said.
The heaviest rain is expected from around 6 p.m. through 10 p.m.
The annual KDKA Fish Fry Guide is back for Lent! Check our listings for a 2026 fish fry near you in Pittsburgh.
A number of schools in the Pittsburgh area have issued delays due to winter weather and potential for freezing rain.
President Trump said he expects the bombing campaign to last four to five weeks, but "we have [the] capability to go far longer than that."
"Sadly, there will likely be more before it ends. That's the way it is. Likely be more," President Trump said after mentioning the three U.S. service members killed in the operation.
President Trump posted on social media that Iranian Supreme Leader Ayatollah Ali Khamenei had been killed after a massive U.S. and Israeli military operation Saturday.
Americans weighed in on how long a conflict with Iran might last and what Congress should do.
Early on Saturday, the U.S. and Israel launched a military operation in Iran, and Pennsylvania's elected officials have responded.
There are always deals to be had at places like Sam's Club and TJ Maxx, but there are ways to get even bigger discounts.
Ollie's Bargain Outlet in Greensburg has temporarily closed after the Pennsylvania Department of Agriculture found a rodent infestation this week.
Lawmakers in Harrisburg are looking at bills to tackle dynamic pricing.
Each year, the American Customer Satisfaction Index releases its survey of supermarkets, and several Pittsburgh grocers got high marks.
Former patients of Dr. Carl Medgaus are running out of time to try to recover money for unfinished dental work.
Bubba from 100.7 STAR joins PTL for another edition of Pop Talk Live!
House hunting is overwhelming, but what if you could see how it all works in one place, and in just a few hours? Next week, the world of real estate is taking over Washington County.
We’re opening up a bakery, but don’t expect buttercream. Garden guru Doug Oster is here to show us how to whip up cakes designed for a very exclusive clientele: birds!
Get ready to start your engines, or maybe charge your batteries, by taking a look inside the Iron City RC Complex, where the cars may be small, but the competition is intense!
We’re about to put our personal priorities on the line with a “wants vs. needs” bracket challenge with Dave Brough from Clearview Federal Credit Union.
From freshly washed cars to air conditioning units to entire porches, dust is blanketing one Westmoreland County neighborhood.
Former patients of Dr. Carl Medgaus are running out of time to try to recover money for unfinished dental work.
The Woodland Hills school board has been a lightning rod of controversy since putting Superintendent Joe Maluchnik on administrative leave three months ago.
Almost suddenly, Allegheny County has seen a dramatic drop in the number of people dying.
News organizations in the Pittsburgh area are coming together to help each other survive.
Fish fries can be a quandary for people with heart and other medical issues.
With a measles outbreak in Pennsylvania, local health experts want to send a message to families.
Cracking down on the price of prescription drugs is a hefty task.
The advisory, issued on Saturday, affected thousands of customers in Allegheny and Washington counties.
Pennsylvania American Water said that a first round of testing came back negative and an update can be expected late Monday morning.
Pitt's season didn't end the way they wanted it to last year but Mason Heintschel said he's excited to take the next step in his second year with the team.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
Bryan Rust, Ben Kindel and Justin Brazeau each had a goal and an assist, helping the Pittsburgh Penguins beat the Vegas Golden Knights 5-0.
A majority of Steelers fans want the team to move on from Aaron Rodgers and remain divided over the hiring of Mike McCarthy.
The New York Rangers rallied to defeat the Pittsburgh Penguins 3-2 on Saturday.
A fire chief says a fire at an Ohio hog farm complex has killed about 6,000 pigs and unleashed a large plume of smoke that could be seen for miles.
Lawmakers in Harrisburg are looking at bills to tackle dynamic pricing.
The budget airline Breeze is launching a new nonstop route from Pittsburgh to Myrtle Beach this summer.
The lawsuit accuses Nippon of prioritizing revenue over worker safety.
West Virginia took a major step in the fight against child pornography Thursday, after the state filed a first lawsuit of its kind against Apple.
The countdown is on, as the NFL Draft comes to Pittsburgh and America turns 250 years old.
Hillary Knight, Megan Keller and Jack and Quinn Hughes made a surprise appearance during "Heated Rivalry" star Connor Storrie's opening monologue on "SNL."
The medical drama "The Pitt" has certainly put a lot of eyes on Pittsburgh, and while the stories are fiction, the show highlights some very real things about the city.
Streaming giant Netflix declined to match Paramount Skydance's $31 per share offer for Warner Bros. Discovery.
A Romanian court on Thursday rejected an appeal by American rapper Wiz Khalifa to annul his nine-month jail sentence handed down for drug possession.
Stay on top of local weather with First Alert Meteorologist Mary Ours' forecast!
Pittsburgh Regional Transit wants to make bus service more reliable and connected, launching a new proposal with a main goal of shifting resources to higher-demand routes. KDKA-TV's Chilekasi Adele reports.
Federal authorities are now involved in the investigation into unauthorized hate messages broadcast over local police radio, including a threat on Pittsburgh Mayor Corey O'Connor's life. KDKA-TV's Andy Sheehan shares the latest.
Get the latest weather forecast from KDKA-TV First Alert Meteorologist Ron Smiley!
The ranking, which was based on direct consumer feedback and Google reviews, aimed to identify businesses that are known for warmth, patience, and service.
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.
