Nail varnishes that change colour are being developed by Chromatic
Technologies of New York. The company is using thermochromic inks that shift in
hue as the temperature changes. The varnish requires two coats—a base coat
and a gloss finish—for the effect to work properly.
More from New Scientist
Explore the latest news, articles and features
Humans
The story of the first human tool: the humble container
Comment
Technology
Can floating data centres meet AI's huge energy demand?
Analysis
Physics
Where did the laws of physics come from? I think I've found the answer
Features
Humans
Huge study of ancient British DNA reveals only minor Roman influence
News
Popular articles
Trending New Scientist articles
1
Where did the laws of physics come from? I think I've found the answer
2
Huge study of ancient British DNA reveals only minor Roman influence
3
Can floating data centres meet AI's huge energy demand?
4
A lost ancient script reveals how writing as we know it really began
5
The story of the first human tool: the humble container
6
Is consciousness more fundamental to reality than quantum physics?
7
The mathematician who doesn’t exist
8
Man destined for Alzheimer's may have been saved by accidental therapy
9
We might be wrong about humanity’s near extinction
10
Woman in cancer remission without treatment in highly unusual case
