AUG 13, 2018 03:34 PM PDT

What does sunscreen look like with a UV camera?

 

Have you ever wondered if there’s really a difference between SPF 30 and SPF 50? You’re not the only one. YouTuber Physics Girl set out with the guys behind YouTube channel How To Make Everything to figure out how various strengths of sunscreens differ – using a UV camera!

As we know, ultraviolet light has a shorter wavelength and higher frequency than other light that is visible to our eyes and it can ultimately do damage to our DNA and cells and even cause skin cancer. Which is why we use sunscreen in the first place – to make sure that those UV rays aren’t making their way into our bodies.

The hypothesis that Physics Girl starts out with is that the stronger SPF sunscreens should show up darker on her skin while looking through the UV camera. That’s because the UV camera makes things that are absorbing UV light look darker. The stronger the SPF, the more UV light absorbed into the sunscreen (and not into your body), the darker it appears in the camera. Do you think her hypothesis makes sense? Watch the video to find out the results!

About the Author
  • Kathryn is a curious world-traveller interested in the intersection between nature, culture, history, and people. She has worked for environmental education non-profits and is a Spanish/English interpreter.
You May Also Like
DEC 14, 2019
Chemistry & Physics
DEC 14, 2019
Outlandish Ideas to Fight Climate Change: How Credible are They?
Boosting investment in renewable energy and reducing the use of fossil fuel are the two commonly acceptable measures to combat climate change. However, sci...
DEC 14, 2019
Clinical & Molecular DX
DEC 14, 2019
A Revealing Look at Rare Disease Incidence
Being diagnosed with a rare disease can be especially terrifying for patients. After all, many of these diseases have no treatment options. This is because...
DEC 14, 2019
Earth & The Environment
DEC 14, 2019
11,000 Scientists Agree-The Climate Crisis is Here
A worldwide coalition of more than 11,000 scientists from 153 countries warns "clearly and unequivocally that planet Earth is facing a climate emergen...
DEC 14, 2019
Cardiology
DEC 14, 2019
Meal Timing May Influence Heart Health
New research into meal timing suggests that when we eat may influence cardiovascular health. Research up until this point has focused on what we eat and ho...
DEC 14, 2019
Chemistry & Physics
DEC 14, 2019
The Elements that Could Go "Extinct"?
Extinction doesn't just happen in the world of biology — it might also have to chemical elements. Our world of modern technologies relies on a lo...
DEC 14, 2019
Health & Medicine
DEC 14, 2019
Study finds association between hair products and breast cancer risk
For many women, hair color and style are significant components of their identity. However, troubling information from a new study about the use of hair dy...
Loading Comments...