HomeScience & InnovationHeat lightning: What is it? (Silent Lightning Definition)

Heat lightning: What is it? (Silent Lightning Definition)

Have you ever seen lightning without hearing the accompanying thunder ? This type of silent flash is often incorrectly called a “ heat flash ”. What is it really ? This is a flash exactly the same as the others, neither more nor less.

A flash seen at a great distance

“Heat lightning” is actually produced by distant thunderstorms so far away that you can see the lightning which is signaled by brief flashes streaking across the sky but the thunder can’t be heard from where you are because of the distance.

Here’s why: the speed of light (about 300,000 km/s or 186,282 miles per second) is extremely fast compared to that of sound (300 m/s – 1,086.9 feet). In addition, the thunderclap and its wave dissipate more easily by propagating and, when one is too far away, the thunder is no longer heard and becomes inaudible.

If during a hike you are caught in a thunderstorm, remember that the shorter the time between the lightning and the thunder, the closer you are to the impact of the lightning and the more danger you are in. To calculate the distance between you and lightning, count the number of seconds that separate the sight of lightning from the sound of thunder. The shorter this time, the faster you have  to take shelter ! 

Mehmet S. Kaya
Mehmet S. Kaya
Mehmet is one of the administrator of Teknonel. As a software developer, he loves to share his knowledge in related topics. He is highly familiar with the editorial process from the inception of an article idea, through the iterative process, publishing, and performance analysis as well as product reviews.

Follow us on Social Media!


Related Articles

As Earth burns, scientists explore Underground Colonization

The earth is burning. Every summer, humid climate and high temperature make the body temperature soar to unbearable. The wildfires in long-term drought areas...

Interesting Discovery: American scientists discovered self-heal metals

When metal structures such as buildings, bridges, or engines develop cracks, they are typically considered irreversible, and over time, these cracks tend to widen....

New Research shows that mosquitoes dislike light colors

Although mosquitoes respond to human breath, sweat, and body temperature, they also have dislikes, such as certain smells. A recent study published in the...

New Research: Half of world’s Great Lakes are shrinking

In extreme climates, frequent droughts and floods have become a major issue, and water resource management is a pressing problem. To make matters worse,...

Explore More Articles

Starfield How to use Scanner-min

Starfield: How to use Scanner?

Scanner is a tool that you'll be needing a lot of in Starfield. It allows you to see which resources and materials a planet...
Starfield How to upgrade Ship Weapons-min

Starfield: How to upgrade Ship Weapons?

Within Starfield you can actually purchase upgrade or fully build your own spaceship via modules. The thing is that, a lot of this isn't...
Proofing Your World 8 Best Strategies for Ultimate Technology Security-min

Proofing Your World: 8 Best Strategies for Ultimate Technology Security

Expanding the size of the attack surface inevitably amplifies the risk of cybersecurity breaches. Consequently, reducing the attack surface logically diminishes cybersecurity risk. It...

Starfield: How to mine Chlorosilanes?

If you already used the workbench, you might have notice a recipe that requires a little resource called Chlorosilanes. And while tracking down elements,...