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#1 2024-10-27 06:50:02

tahanson43206
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Registered: 2018-04-27
Posts: 19,540

Photomolecular Effect - Evaporation of water without heat

This topic is offered for NewMars members to collect information about research into how water evaporates from the oceans and elsewhere.

The opening of this topic is based upon a YouTube video, so I'm hoping NewMars members will be able to find original documents.

The report claims that the photomolecular effect is far more efficient at releasing water from liquid form than thermal agitation.

https://www.youtube.com/watch?v=17Y82tJDk2o

The comments after the video have a nice range, from totally supportive to quite skeptical.

The strongest argument I saw was the one about why plants are green! By reflecting green light plants protect themselves from evaporation of water.

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#2 2024-10-27 06:50:34

tahanson43206
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Registered: 2018-04-27
Posts: 19,540

Re: Photomolecular Effect - Evaporation of water without heat

This post is reserved for an index to posts that may be contributed by NewMars members over time.

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#3 2024-10-27 07:14:54

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 19,540

Re: Photomolecular Effect - Evaporation of water without heat

I asked Google for information about MIT and photo molecular effect and got a nice collection of snippets...

How light can vaporize water without the need for heat

MIT News
·
https://news.mit.edu › how-light-can-vaporize-water-wit...
Apr 23, 2024 — MIT researchers discovered that light can cause evaporation of water from a surface without the need for heat. This “photomolecular effect” ...

In a surprising finding, light can make water evaporate ...

MIT News
·
https://news.mit.edu › surprising-finding-light-makes-wa...
Oct 31, 2023 — At the interface of water and air, light can, in certain conditions, bring about evaporation without the need for heat, according to an MIT study.

Evaporation without heat

MIT Technology Review
·
https://www.technologyreview.com › 2024/06/25 › evapo...
Jun 25, 2024 — A surprising “photomolecular effect” could affect calculations of climate change and may lead to improved desalination and drying processes.
People also ask
What is the photomolecular effect?
Who discovered the photomolecular effect?
Can light triple the evaporation rate of water MIT study shows?
Can MIT light evaporate water?
Feedback

Solar photomolecular desalination

Abdul Latif Jameel Water and Food Systems Lab
·
https://jwafs.mit.edu › projects › solar-photomolecular-d...
The photomolecular effect causes water clusters to cleave off at the water-air interface, and forced air carries the molecular clusters to the condensing ...

light alone can evaporate water without heat, a previously ...

Reddit · r/Futurology
·
180+ comments · 6 months ago
MIT researchers discover "photomolecular effect": light alone can evaporate water without heat, a previously unknown physics phenomenon that ...

Light can vaporize water without heat, says ...

MIT News
·
https://news.mit.edu › interesting-engineering-0
Apr 24, 2024 — A new study by MIT researchers that finds light can cause evaporation of water from a surface without the need for heat.

can anyone explain mit's recent research on ...

Reddit · r/AskPhysics
·
4 comments · 3 months ago
The idea is that the electric field component of an electromagnetic wave polarized with the electric field component passing through the surface of the water.
Missing: study | Show results with: study

Plausible photomolecular effect leading to water ...

DSpace@MIT
·
https://dspace.mit.edu › handle
by Y Tu · 2023 · Cited by 32 — We report in this work several unexpected experimental observations on evaporation from hydrogels under visible light illumination.
Missing: study | Show results with: study

Scientists discover 'revolutionary' phenomenon that solves ...

The Independent
·
https://www.independent.co.uk › tech › water-discovery...
Apr 25, 2024 — A team from Massachusetts Institute of Technology (MIT) uncovered a process called “photomolecular effect” that demonstrates for the first time that water can ...

Photomolecular effect: Visible light interaction with air– ...

PNAS
·
https://www.pnas.org › doi › abs › pnas.2320844121
by G Lv · 2024 · Cited by 6 — Our study suggests that the photomolecular effect should happen widely in nature, from clouds to fogs, ocean to soil surfaces, and plant transpiration and ...
People also search for
Mit study photomolecular effect pdf
Photomolecular effect PDF
MIT photomolecular effect
Plausible photomolecular effect leading to water evaporation exceeding the thermal limit
Photomolecular effect wiki
photomolecular effect: visible light interaction with air–water interface
Photomolecular evaporation
Photomolecular effect desalination

I'm hoping someone in the NewMars membership will be inspired to take the time to try to understand what is going on, and how it might be useful here on Earth, or on Mars for that matter.

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#4 2024-10-29 07:09:43

tahanson43206
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Registered: 2018-04-27
Posts: 19,540

Re: Photomolecular Effect - Evaporation of water without heat

Here's one of the comments about the MIT research...

@dimension2788
4 months ago
❤I studied with Horace McCracken in the late 80s. He was a champion of solar water distillation. I own one which has seen continuous use for 30 years. There are no filters and uses sunlight and the photo molecular effect to cause water in a shallow trough the vaporize and condense on the underside of shower door glass.  It makes RO quality water with no filters.  There is a fill up irrigation valve which lets in a small amount of water every night.  A overflow lets out the excess.  This makes a 2-3" shallow pond of water.
This all makes perfect sense.  Sunlight is very reactive and interacts with anything exposed to it like my skin!  Beautiful work to discover this photo molecular effect I knew it could not be heat alone which makes a solar still work so good!

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#5 2024-10-29 07:13:27

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 19,540

Re: Photomolecular Effect - Evaporation of water without heat

And here is a follow by Google.... citations for Horace McCracken and solar...

Solar still pans— The search for inexpensive and reliable ...

ScienceDirect.com
·
https://www.sciencedirect.com › science › article › pii
by H McCracken · 1965 · Cited by 4 — The inclined-tray concept of solar-still construction involves tilting the brine-containing member of the greenhouse still parallel to the “south” pane of ...

UNDERSTANDING SOLAR STILLS

U.S. Agency for International Development (.gov)
·
https://pdf.usaid.gov › pdf_docs › pnabc961
PDF
by J Gordes — The author of this paper, VITA Volunteer Horace McCracken, is the president of the McCracken Solar Company in Alturas, California. The co-authcr, VITA Volunteer ...
49 pages

How to build a passive solar water heater

Amazon.com
·
https://www.amazon.com › build-passive-solar-water-he...
How to build a passive solar water heater [McCracken, Horace] on Amazon.com. *FREE* shipping on qualifying offers. How to build a passive solar water ...
30-day returns

Understanding Solar Stills (Vita Technical Paper, No 37: 9/85) - ...

AbeBooks
·
https://www.abebooks.com › plp
Understanding Solar Stills (Vita Technical Paper, No 37: 9/85) by McCracken, Horace; Gordes, Joel - ISBN 10: 0866192484 - ISBN 13: 9780866192484 - Vita ...

Understanding Solar Stills

Appropedia
·
https://www.appropedia.org › Understanding_Solar_Stills
Jan 11, 2007 — The author of this paper, VITA Volunteer Horace McCracken, is the president of the McCracken Solar Company in Alturas, California. The co ...

Thinking of building a solar still?

Make: DIY Projects and Ideas for Makers |
·
https://makezine.com › Blog
Jun 25, 2009 — Build It Solar has a great collection of solar DIY projects, including stills, cookers, food driers, and water heaters.

Solar Distillation: A Simple Solution to a Global Problem

itdoesthejob.com [√]
·
http://itdoesthejob.com › ...
PDF
By Michael Culver. Summary: Solar distillation is a natural process that has become a mature technology in recent years. This article discusses.

Solar Distiller - Natural Building Colloquium

networkearth.org
·
http://www.networkearth.org › naturalbuilding › distiller
Horace McCracken, of McCracken Solar. Horace has been designing and building solar stills for more than 30 years, and as the saying goes, he's been there ...

Solar Distillation Unit

Northern Arizona University
·
https://ceias.nau.edu › CENE › Documents › PPT
PDF
Joel Gordes $ Horace McCracken. Understanding Solar Stills. Arlington, Virginia. National Weather Service Forecast Office, 2012. Flagstaff, AZ ...
14 pages

Purifying Water Using Passive Solar Water Distillation

Mother Earth News
·
https://www.motherearthnews.com › real-food › passive-s...
Aug 1, 2002 — According to a paper by Horace McCracken, a leader in solar distiller design, laboratory tests show distillers can remove trichloroethylene ...

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#6 2024-10-29 07:17:08

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 19,540

Re: Photomolecular Effect - Evaporation of water without heat

here's a question for the NewMars community...

Would reflecting green from the bottom of a solar still increase performance?

It should be possible to build a simple experiment to find out.

If anyone in the active membership has time to investigate the McCracken solar still, this topic is available for reporting on what you find.

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#7 2024-10-29 07:22:31

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 19,540

Re: Photomolecular Effect - Evaporation of water without heat

Amazon shows a listing for one of two books by Horace McCracken ... 1978 - out of print

How to build a passive solar water heater
Click image to open expanded view
How to build a passive solar water heater Unknown Binding – January 1, 1978
by Horace McCracken (Author)
See all formats and editions
   Report an issue with this product or seller
Language
English
Publisher
McCracken
Publication date
January 1, 1978
See all details

Sponsored
Product details
ASIN  :  B0006X298W
Publisher  :  McCracken; Revised edition (January 1, 1978)
Language  :  English
Videos

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#8 2024-10-29 07:25:02

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 19,540

Re: Photomolecular Effect - Evaporation of water without heat

And here's the Amazon listing for a 1985 book...

Understanding Solar Stills (Vita Technical Paper, No 37: 9/85)
Click image to open expanded view
Understanding Solar Stills (Vita Technical Paper, No 37: 9/85) Plastic Comb
by Horace McCracken (Author), Joel Gordes (Author)
See all formats and editions
   Report an issue with this product or seller
Language
English
Publisher
Vita Pubns
Dimensions
8.75 x 0.5 x 10.75 inches
ISBN-10
0866192484
ISBN-13
978-0866192484
Next slide of product details

Sponsored
Product details
Language  :  English
ISBN-10  :  0866192484
ISBN-13  :  978-0866192484
Item Weight  :  5.7 ounces
Dimensions  :  8.75 x 0.5 x 10.75 inches
Videos

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#9 2024-10-29 07:37:24

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 19,540

Re: Photomolecular Effect - Evaporation of water without heat

Worldcat is a database of library holdings...

Libraries contribute lists of their holdings, and Worldcat makes the information available for searches...

Here are the results for the 1985 McCracken book:

Library Type Academic
Academic
University of Florida

716 miles from your current location.

George A Smathers Libr, PO Box 117007, Gainesville, FL, 32611-7007, United States
Favorite Library
Library Type Regional or National
Regional or National
Maine State Library

739 miles from your current location.

Lma Bldg, State House Sta #64, Augusta, ME, 04333-0064, United States
Favorite Library
Library Type Academic
Academic
University of Idaho Library

1,756 miles from your current location.

Rayburn St., Moscow, ID, 83844-2350, United States
Favorite Library
Library Type Academic
Academic
Nelson Mandela University

8,582 miles from your current location.

P O Box 77000, Port Elizabeth, 6031, South Africa
Favorite Library

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#10 2024-10-29 07:56:36

tahanson43206
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Registered: 2018-04-27
Posts: 19,540

Re: Photomolecular Effect - Evaporation of water without heat

Co-Author Joel Gordes pass away in June of 2024...

Joel Gordes Obituary - (1946-2024)

Hartford Courant
·
https://www.courant.com › Obituaries
Joel N Gordes from www.courant.com
Gordes, passed away on June 16, 2024, at the age of 78. Born in New Britain and a resident there until 10, he was a graduate of Newington High School in 1964 ...

Former Colebrook state Rep. Joel Gordes dies at 78

The Register Citizen
·
https://www.registercitizen.com › News
Jun 26, 2024 — Joel N. Gordes, a former Democratic state representative who made his home in Colebrook, died June 16. He was 78.

Joel Gordes

Connecticut Academy of Science and Engineering
·
https://ctcase.org › Member Recognition
Joel Gordes, Director, Center for Energy Security Solutions, was elected to Honorary Membership for leadership and contributions throughout his career.
Missing: N | Show results with: N

Joel Gordes - Energy & Environmental Security Strategist

LinkedIn · Joel Gordes
·
1.1K+ followers
West Hartford, Connecticut, United States · Chief Strategist · Energy & Environmental Security Strategist
Chief Strategist. Energy & Environmental Security Strategist · President. Energy and Environmental Security Solutions · President. Environmental Energy Solutions.

Joel Gordes

NESEA.org
·
https://nesea.org › user › nesea
Joel Gordes has been involved in energy efficiency and renewable energy for over 40 years. He has worked in research, design and sales of active and passive ...

Joel N. Gordes's Profile | The CT Mirror, Energy Central ...

Muck Rack
·
https://muckrack.com › joel-n-gordes
In 1990, I was one of five legislators to introduce the first climate change legislation that became PA 90-219, An Act Considering Climate Change, ...

Joel Gordes was a co-author of... - The Register Citizen

Facebook · The Register Citizen
·
4 months ago
Joel Gordes was a co-author of Connecticut's first legislation to mitigate global warning in 1990; he said it was the most popular bill of that session.
Missing: N | Show results with: N

Testimony - Joel Gordes - Environmental Energy Solutions

Connecticut General Assembly (.gov)
·
https://www.cga.ct.gov › lab › related › Testimony ...
PDF
Testimony of Joel N. Gordes, Environmental Energy Solutions. 38 Brookmoor Road, West Hartford, CT 06107. Senator Fonfara, Representative Nardello, Joint ...
4 pages

Joel N. Gordes - Connecticut General Assembly

Connecticut General Assembly (.gov)
·
https://www.cga.ct.gov › ETdata › Tmy › 2018SB-...
PDF
Mar 1, 2018 — My name is Joel N. Gordes and I appreciate the opportunity to exercise my right to comment on SB. 9, AAC Connecticut's Energy Future ...
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