The "Wagon Wheel Illusion" and what it does to our eyes | Hey Ray!
Have you ever noticed when you see a wheel moving at high speed it looks like it is going backward?
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Have you ever noticed when you see a wheel moving at high speed it looks like it is going backward?
You've heard of ground coffee, but what about a coffee cup falling to the ground?
You may have heard we're getting a mini-moon soon, but that begs the question...will we be able to see it?
One viewer asks - why can we sometimes see the moon during the day?
As the air gets colder, it's important to test for Radon.
We often perceive the sun to be yellow, but is it actually?
We've all put popcorn kernels on the stove or in the microwave, but why and how do they pop?
Western Pennsylvania has several creeks and rivers in our area, so what is the difference?
We've got a mystery to solve! Why does it seem like you can only hear the train whistle at Fallingwater when it's going to rain?
Hey Ray, why is it when it gets too hot, airplanes cannot fly?
If you've ever noticed a difference in humidity from higher vegetation to lower vegetation, it's something known as "corn sweat."
Using just some markers, water, and plastic bags, we can make art disappear!
Even when you aren't moving, you're still moving through the universe at a pretty incredible rate!
An old idea says you should open windows before a tornado to equalize the pressure, but does that work?
On beautiful days full of sunshine, sometimes some puffy clouds develop that look like cotton balls.
Ever since people looked for ways to predict the weather, one of those ways has been using caterpillars to determine the severity of an impending winter. Ray Petelin explains the theories in a new Hey Ray!
This time of year, it's a common weather question: What is the difference between hurricanes and nor'easters? Ray Petelin is here to explain!
Have you ever noticed that thunder sounds louder at night? Ray Petelin explains why in a new Hey Ray!
With summer heading to its conclusion, hummingbirds are about to migrate south. Ray Petelin shows you how you can prepare to say goodbye to your friends in a new Hey Ray.
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!