Learn more about scienceandnature with this collection
How to make sustainable choices in everyday life
Identifying ways to reduce waste and conserve resources
Understanding the impact of human actions on the environment
PH measures the acidity or basicity of liquid solutions
The term is used in chemistry, biology, and agronomy. PH translates the values of the concentration of the hydrogen ion into numbers between 0 and 14.
- Pure water corresponds to a pH of 7, which is neutral (neither acidic nor alkaline).
- A pH less than 7 is considered acidic.
- A pH greater than 7 is considered basic or alkaline.
14
143 reads
Ways to take a pH measurement
Danish biochemist S.P.L Sorensen used the measurement to represent the hydrogen ion concentration, expressed in equivalents per litre of an aqueous solution: pH = −log[H+]
The pH can be read with a less accurate litmus paper or with indicator dyes. However, it is usually measured with a pH meter that consists of a voltmeter attached to a pH-responsive electrode (usually mercury-mercurous chloride electrode) and a reference electrode (usually glass that are immersed in a solution. The voltmeter measures the potential difference between the glass and reference electrodes
13
29 reads
PH is most important in agriculture
In agriculture, the pH of the soil shows what crops will grow easily in the soil and what adjustments are needed to adapt it for growing other crops.
Acidic soils are often considered infertile as the solubility of aluminium and manganese also increase with acidity. However, conifers and members of the family Ericaceae, such as blueberries, prefer acidic soils. Acidic soil can be neutralized by treating it with lime.
13
29 reads
CURATED BY
More like this
1 idea
Balneotherapy, Therapeutic Waters, and Healing Springs - The Human Condition
thehumancondition.com
5 ideas
The Science Behind Honey’s Eternal Shelf Life
smithsonianmag.com
7 ideas
How Nutrients Cycle Through the Environment
thoughtco.com
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
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.
“
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!
“
samz905
Don’t look further if you love learning new things. A refreshing concept that provides quick ideas for busy thought leaders.
“
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.
“
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.
“
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!
“
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
—
—
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