tools of light

Biddy Early * Callahan * John Tyndall * CEO Jenny makes a Power Tower







Callaghan Tower-Round Tower-Power Tower A13 Blue image 0
Callaghan Tower-Round Tower-Power Tower A13 Blue image 1
Callaghan Tower-Round Tower-Power Tower A13 Blue image 2
he * * Callaghan Tower * * reinforces nature’s growth forces through form and paramagnetic material, see Alana Moore “Stone age farming”
The tower is 333 cm high with a roof and has a diameter of 11.5 cm at the bottom.
Is set up in the bed and filled with basal flour if you want to amplify the effect.
The clay is a special clay made by hand in elaborate production and mixed with Effective Microorganisms (EM ceramics), with magnetite flour and with other energetic ingredients. The tower was rotated on the potter’s disc and thus also has the natural spiral texture caused by the rotation process and the hands of the potter.
Forest green rustkal glazed and an eye-catcher for the garden, the bed or for the greenhouse.
This tower has a hole floor and the stuffed basalt flour has indirect contact with the earth, both direct or when a well drained bottom fleece is inserted.
The Callaghan Tower is available in various versions, as desired, also in a different colour, see picture gallery).
For example, with soil, with pinhole floor or without soil.

You can choose it in a variety of colors, as offered here in my shop also for other ceramics.

2020-07-28 19_15_25-Window.png


Towers of Power can be described as paramagnetic antennaes that collect and focus beneficial cosmic energies and direct them into surrounding soil. The spherical energy field of enhanced magnetism around them stimulates biological processes and enhances the health, vitality and wellbeing of plants and animals in the vicinity. Topsoil production is accelerated and bumper crops are often the result. Plants can go on to have increased sugar levels, which makes them taste sweeter, while they become more resilient, and less pest and frost prone. Up to one hundred acres of coverage has been observed, on a wheat farm on the Eyre Peninsula of South Australia, with just one large (4m high) Power Tower.


Towers of Power are an ideal adjunct to organic farming and gardening systems. They are easy and inexpensive to construct. However it should be noted that this is an experimental technology, so there can be no guarantees about possible outcomes.

Right: Pia Lindgrew with her Power Tower on a biodynamic olive farm in the Hunter Valley, New South Wales, Australia.
Inspiration behind the Towers of Power

The unique round towers in Ireland have long proved enigmatic, until recently. The American professor Phil Callahan PhD has been investigating round towers for several decades. The local Irish farmers, he discovered, appreciate them for their fertile surroundings. He observed farmers ferry their cows in row boats to Devenish Island so they could eat the lush grass growing around the tower there.

Constructed of paramagnetic stone (that is – stone which is weakly attracted to a magnet), these ancient towers act like giant magnetic antennae, drawing down energies beneficial to soil, says Callahan, well known for his studies of insect ‘antennae’. Soils around round towers are highly paramagnetic and enjoy great fertility.
Callahan believes that the Irish towers act as wave-guides or aerials for extra-low-frequency (ELF) radiation from high above Earth (- Schumann radiation) and the sun . Vital to our health, ELF waves are able to penetrate water and soil, unlike higher frequencies of radiation. To amplify incoming ELF, towers must be paramagnetic, and the effect is enhanced even more when paramagnetic and diamagnetic (i.e. weakly repelled by a magnet) materials are sandwiched together. The Irish towers, often made from granite or basalt stone with wooden floors, were perfect for the task.



Some early Power Towers developed by American Jerry Fridenstine are positioned on Earth energy points to act as Earth acupuncture needles, drawing down the beneficial energies into the soil. Their reported effects are to assist the percolation of water into the soil and reduce its evaporation, therefore extending the growing season; and to improve microbial activity, helping topsoil to build more rapidly.
John Quackenboss of Virginia, USA, developed similar towers.

In 1986 he erected a 6’/ 1.8m high terracotta pipe of 12″/ 30cm diameter filled with basalt gravel; with 5 pipes covering 1000 acres.


He capped the pipes with a cone of concrete, made with basalt gravel and coated in crushed basalt, bringing the total height to 2m. After 6 weeks good effects were observed.
The farm enjoyed increased crop yields, despite drought conditions.
Properties with such Towers report higher rainfall and less moisture evaporation.
There are now hundreds of such Towers on Australian farms.

A Tower that Alanna Moore constructed in Wanneroo, Western Australia, on a 7 acre market garden would send ‘tingles down the spine’ of farmer Gary de Piazzi whenever he passed by. “Cropping on the sandy coastal plain is a bit like hydroponics, because of the lack of most nutrients there”, says Gary, who wanted to reduce dependance on chemical inputs, especially in the winter wet season, when moulds develop quickly in vegetables. After the Tower went up in 1994, at a carefully selected position, and he had spread paramagnetic rock dust all over the cropping land, the next winter was particularly wet, with Perth’s main Mundaring dam spilling over. But Gary didn’t need to use fungicide and his vegetables were more robust than ever!


The paramagnetic round tower makes it possible to capture, transform and radiate an energy favorable to the life, fertility and health of all the organisms around, over a radius of several meters depending on its size.
It is positioned in the middle of the vegetable patch or garden.
The standard size of the tower is one royal cubit of approximately 52.5 cm.
We observe a radius of action which corresponds to about 20 times its height,
this can be less or more, depending on its geobiological position and local energy context.

  • Small tower of 26 cm, diameter 6 cm = radius of action 5 m
  • 52.35 cm royal cubit tower, 10 cm diameter = 10 m radius of action
  • 1.50 m tower (sandstone pipe) = 30 m radius of action

Indoor and outdoor use.


Strongly improves vital energy, schumann waves and harmony all around, for the well-being of all living organisms, plants, beneficial micro-organisms, earthworms, birds, insects, animals, humans.

The use of the round tower has a complementary action to all the other electroculture applications and can therefore be used simultaneously.
The cone of the hat of the tower is 51 degrees of angle, this is the same angle that we find in the Nubian pyramid with the golden number between the two edges which are made from the top. We also find the measurements of the golden ratio in the tower.


The round tower originates from our knowledge of the round towers found in Ireland,
Phil Callahan, a radio technician and entomologist scientist has written several books about the benefits of these towers on the fertility of the surrounding land and how to do it.

John Tyndall

John Tyndall.

Irish physicist

John Tyndall, (born August 2, 1820, Leighlinbridge, County Carlow, Ireland—died December 4, 1893, Hindhead, Surrey, England), Irish experimental physicist who, during his long residence in England, was an avid promoter of science in the Victorian era.

Tyndall was born into a poor Protestant Irish family. After a thorough basic education he worked as a surveyor in Ireland and England (1839–47). When his ambitions turned from engineering to science, Tyndall spent his savings on gaining a Ph.D. from the University of Marburg, Germany (1848–50), but then struggled to find employment.

In 1853 Tyndall was appointed professor of natural philosophy at the Royal Institution, London. There he became a friend of the much-admired physicist and chemist Michael Faraday, entertained and instructed fashionable audiences with brilliant lecture demonstrations (rivaling the biologist T.H. Huxley in his popular reputation), and pursued his research. An outstanding experimenter, particularly in atmospheric physics, Tyndall examined the transmission of both radiant heat and light through various gases and vapours. He discovered that water vapour and carbon dioxide absorb much more radiant heat than the gases of the atmosphere and argued the consequent importance of those gases in moderating Earth’s climate—that is, in the natural greenhouse effect. Tyndall also studied the diffusion of light by large molecules and dust, known as the Tyndall effect, and he performed experiments demonstrating that the sky’s blue colour results from the scattering of the Sun’s rays by molecules in the atmosphere.

Tyndall was passionate and sensitive, quick to feel personal slights and to defend underdogs. Physically tough, he was a daring mountaineer. His greatest fame came from his activities as an advocate and interpreter of science. Tyndall, in collaboration with his scientific friends in the small, private X Club, urged greater recognition of both the intellectual authority and practical benefits of science. He was accused of materialism and atheism after his presidential address at the 1874 meeting of the British Association for the Advancement of Science, when he claimed that cosmological theory belonged to science rather than theology and that matter had the power within itself to produce life. In the ensuing notoriety over this “Belfast Address,” Tyndall’s allusions to the limitations of science and to mysteries beyond human understanding were overlooked. Tyndall engaged in a number of other controversies—for example, over spontaneous generation, the efficacy of prayer, and Home Rule for Ireland.

John Tyndall

1820 – 1893

John Tyndall ranks as one of Ireland’s most successful scientists and educators. He reached the pinnacle of 19th century science and counted amongst his friends and collaborators many of the best-known scientists of that century. Born in Leighlinbridge, County Carlow, his early education has been likened to the “hedge school” variety, but the expert tutelage of his teacher, John Conwill, ensured he had a solid foundations in mathematics, English composition, drawing and surveying.

John Tyndall
                                      John Tyndall




He remained at school in Leighlinbridge until he was 17 or 18, unusual at the time, and then was employed as a surveyor by the Ordnance Survey of Ireland.  He worked in Carlow, Youghal and Kinsale but in 1842 transferred to the English survey and re-located to Preston.  While there he became interested in continuing education and attended night classes at the local Mechanics Institute.  In 1847 he became a mathematics teacher at the Queenwood School in Hampshire, where with the chemist Edward Frankland, they established the first widely-used school teaching laboratory.  They both travelled to Marburg, Germany, in 1848, to study for the newly-established PhD degree with Robert Bunsen (he of the Bunsen burner).

Tyndall completed his PhD in two years and returned to England, seeking various academic positions.  Although initially unsuccessful, he displayed tenacity and focus and after a series of short-term positions and continued teaching at Queenwood, in 1853 landed the Professorship of Natural Philisophy at the Royal Institution in London.  He would eventually succeed (in 1867) Michael Faraday as the Superintendent of the Royal Institution.

At the Royal Institution, Tyndall’s primary responsibility was for the delivery of scientific lectures to the public.  He was an excellent educator, practical demonstrator of scientific phenomena and populariser of science.  He displayed great skill at making difficult scientific topics understandable to the layman.  He became extremely well known and much sought-after and later, in the 1870s, toured the USA delivering public lectures which drew packed houses.  Tyndall’s scientific interests spanned heat, sound, light and environmental phenomena.  Amongst his many achievements, perhaps he is best known for the explanation of why the sky is blue – the scattering of light by small particles suspended in the atmosphere.  This colour is known as Tyndall Blue.  His major scientific interest was the study of the interaction of light with matter, especially gases.  He studied the absorption of infrared light by gases found in the atmosphere: he developed the first double beam spectrophotometer for this task (described by some as the first opto-electronic device), and made the first studies of atmospheric pollution in London.

He developed a practical demonstration of the propagation of light though a tube of water via multiple internal reflections.  This he referred to as the light-pipe, which was a forerunner of the optical fibre used in modern communications technology.  Tyndall’s rigorous experimental approach was embodied in the optical methods he developed for measurement of particles, based on the light scattering idea (the Tyndall Effect).  Using these methods he could make simple checks on the purity and cleanliness of purified air.  This ability enabled him, following correspondence with Louis Pasteur, to resolve the great debate in biology at the time: he demonstrated that spontaneous generation of life did not occur and that bacteria, or germs, did exist.  He subsequently invented a method for the destruction of bacteria in food, called Tyndallisation, which is more effective than Pasteurisation.

He invented the first fireman’s respirator; was a keen mountaineer and glaciologist; was a member of the X Club and a Fellow of the Royal Society.

Further details on Tyndall can be found in:

The Ascent of John Tyndall: Victorian Scientist, Mountaineer, and Public Intellectual. Roland Jackson, Oxford University Press, 2018.

John Tyndall – Essays on a Natural Philisopher.Edited by W.H. Brock, N.D. McMillan and R.C. Mollan, Royal Dublin Society, 1981.

Life and Work of John Tyndall. A.S. Eve and C.H. Creasey, Macmillan & Co., London, 1945.


Fascinating information thanks.

Eventually we got our act together to make a basalt-filled pipe today.   It didn’t take too long at all.   I was lucky to have found two pipes in the pond when I cleared it out, and we joined them together with strong ducttape, which was really necessary as about 20 cm was buried in the ground.   I’d bought 5 bags of basalt soil conditioner, but only needed less than 2 bags to fill it up.   I’ll spread the remaining bags over the garden soil.
By great synchronicity Murielle found the perfect piece of capping stone on a beach in Sligo, it’s a great shape and seems to be basalt.  She located the perfect spot for the pipe, I think it looks great, as far south in the garden as possible and in a nice sheltered location.



Complete mental indigestion  having read through the whole lot of this section; with concentration stronger in some areas than others. Really fascinating.  

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.