Learn more about history with this collection
How to stay motivated
How to create a workout routine
Proper form and technique for home workouts
UV astronomy
There are also other celestial sources of UV radiation.
Very large young stars shine most of their light in ultraviolet wavelengths. But the Earth's atmosphere blocks much of the UV radiation, and observations are conducted using high-altitude balloons and special orbiting telescopes equipped to observe the UV region of the EM spectrum.
73
546 reads
MORE IDEAS ON THIS
Ionization
UV radiation has enough energy to break chemical bonds. UV photons can cause ionization, meaning chemical bonds will break that otherwise would not.
It can be useful, for instance, in disinfecting a surface, but it can also damage materials and living tissues, part...
76
351 reads
Fluorescence
Substances like minerals, plants, fungi, microbes, and organic and inorganic chemicals, can absorb UV radiation, causing electrons to jump to a higher energy level. When the electrons return to a lower energy level, they emit a portion of the absorbed energy as visible light.
...74
278 reads
UV light as a cancer treatment
Some skin conditions can be treated using UV light.
PUVA (psoralen ultraviolet light treatment) is used to treat lymphoma, eczema, psoriasis, and vitiligo. Patients take a drug or apply a lotion to make their skin sensitive to light. Then a UV light is shone on the skin, s...
76
392 reads
Ultraviolet light is a type of electromagnetic radiation
UV light comes from the sun and is transmitted in waves or particles at different wavelengths an frequencies.
It makes black-light posters glow, and is responsible for summer tans. But too much exposure to UV radiation damage living tissue.
91
717 reads
UV radiation and sunburn
A suntan is a reaction to exposure to UVB rays. When the body senses sun damage, it sends melanin, a pigment in the body, to absorb UV light and protect the body from more damage, resulting in a darkened skin.
Continued exposure to UV radiation can damage ...
73
291 reads
UV is generally divided into three sub-bands
- UVA, or near UV (315-400 nanometers)
- UVB, or middle UV (280-315 nanometers)
- UVC, or far UV (180-280 nanometers)
Radiations with wavelengths from 10nm to 180nm are sometimes referred to as vacuum or extreme UV...
81
474 reads
The electromagnetic (EM) spectrum
EM is the broad range of wavelengths. It is divided into seven regions and ordered in decreasing wavelength and increasing energy and frequency, namely radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma-rays.
Ultraviolet light...
77
480 reads
UV effects
Most natural UV light comes from the sun. Only 10 % of sunlight is UV, and only one-third of it gets through the atmosphere.
Of the solar UV energy that reaches the equator, 95% is UVA, and 5% is UVB. No measurable UVC from the sun gets to the Earth's surf...
72
322 reads
CURATED FROM
CURATED BY
Ready for the next level?
Read Like a Pro
Explore the World’s
Best Ideas
200,000+ ideas on pretty much any topic. Created by the smartest people around & well-organized so you can explore at will.
An Idea for Everything
Explore the biggest library of insights. And we've infused it with powerful filtering tools so you can easily find what you need.
Knowledge Library
Powerful Saving & Organizational Tools
Save ideas for later reading, for personalized stashes, or for remembering it later.
Start
31 IDEAS
Start
44 IDEAS
# Personal Growth
Take Your Ideas
Anywhere
Organize your ideas & listen on the go. And with Pro, there are no limits.
Listen on the go
Just press play and we take care of the words.
Never worry about spotty connections
No Internet access? No problem. Within the mobile app, all your ideas are available, even when offline.
Get Organized with Stashes
Ideas for your next work project? Quotes that inspire you? Put them in the right place so you never lose them.
Start
47 IDEAS
Start
75 IDEAS
My Stashes
Join
2 Million Stashers
4.8
5,740 Reviews
App Store
4.7
72,690 Reviews
Google Play
samz905
Don’t look further if you love learning new things. A refreshing concept that provides quick ideas for busy thought leaders.
“
Ashley Anthony
This app is LOADED with RELEVANT, HELPFUL, AND EDUCATIONAL material. It is creatively intellectual, yet minimal enough to not overstimulate and create a learning block. I am exceptionally impressed with this app!
“
Sean Green
Great interesting short snippets of informative articles. Highly recommended to anyone who loves information and lacks patience.
“
Shankul Varada
Best app ever! You heard it right. This app has helped me get back on my quest to get things done while equipping myself with knowledge everyday.
“
Jamyson Haug
Great for quick bits of information and interesting ideas around whatever topics you are interested in. Visually, it looks great as well.
“
Laetitia Berton
I have only been using it for a few days now, but I have found answers to questions I had never consciously formulated, or to problems I face everyday at work or at home. I wish I had found this earlier, highly recommended!
“
Giovanna Scalzone
Brilliant. It feels fresh and encouraging. So many interesting pieces of information that are just enough to absorb and apply. So happy I found this.
“
Ghazala Begum
Even five minutes a day will improve your thinking. I've come across new ideas and learnt to improve existing ways to become more motivated, confident and happier.
“
Read & Learn
20x Faster
without
deepstash
with
deepstash
with
deepstash
Access to 200,000+ ideas
—
Access to the mobile app
—
Unlimited idea saving & library
—
—
Unlimited history
—
—
Unlimited listening to ideas
—
—
Downloading & offline access
—
—
Personalized recommendations
—
—
FAQ
Claim Your Limited Offer
Get Deepstash Pro
Supercharge your mind with one idea per day
Enter your email and spend 1 minute every day to learn something new.
I agree to receive email updates