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JamesTB
This photo in particular stands out for me -
www.martingracephotography.com... -ancient-egyptians
What could have made those marks on the ground?
Every 50 years or so, a massive star in our galaxy blows itself apart in a supernova explosion. Supernovas are one of the most violent events in the universe, and the force of the explosion generates a blinding flash of radiation, as well as shock waves analogous to sonic booms.
Intense Geomagnetic Storms and their possible effects on society:
Modern society is becoming ever increasingly dependent on space technology for daily routine functions, such as communication, navigation, data transmission, global surveillance of resource surveys, atmospheric weather, etc. Space weather can influence the performance and reliability of space-borne and ground based technological systems and can endanger human life and health. Intense and super intense geomagnetic storms create hostile space weather conditions that can generate many hazards to the spacecrafts as well as technological systems at ground. Geomagnetic storms can cause life-threatening power outages such as Hydro Quebec power failure during March 1989 magnetic storm. Strong geomagnetically induced currents (GICs) produced by short period variations in the geomagnetic field during intense magnetic storms can cause damage to power transmission lines and corrode long pipelines. Maitri station data clearly shows the correlation between the substorm activity and the southward component of the IMF. Adverse space weather conditions created by intense and super intense magnetic storms could affect communication, navigation and proper functioning as well as the life span of technological systems in space.
Earth’s Global Electric Circuit – an integrated framework involving the lower atmosphere, the ionosphere and the magnetosphere:
The Earth’s electrical environment can be regarded as a single giant electrical circuit that connects currents and electric fields in the magnetosphere, ionosphere and the Earth’s lower atmosphere. The classical picture of the global electric circuit (GEC) presupposes that the thunderclouds are the only source and the fair-weather fields are set up by the upward flowing currents, from the thundercloud system, which charges the ionosphere to a few hundred kilovolts with respect to Earth. It is now recognized that there are at least two other important sources that contribute to the global fields. The solar wind/magnetosphere dynamo generates 30-150 kV potential drop across the northern and southern polar ionospheric caps which when mapped down to the surface can produce a ±20% changes in the air-Earth current and vertical electric field. A smaller contribution comes from the ionospheric dynamo originating in 100-150 km altitude range due to tidal forcing. Potential difference of 5-10kV are generated by this source in the ionosphere, and when mapped to the surface can produce perturbations typically few percent in the observed fields. The study of GEC provides a good framework for exploring the interconnections and coupling of various regions of the atmosphere. Long-term measurements of electrical parameters, namely, the atmospheric vertical electric field, conductivity and total current density, that are required to obtain an adequate description of the GEC, will be useful in such an integrated approach involving the various atmospheric regions.
soficrow
...the idea being investigated here is that tools could have existed that stopped working due to environmental change and then, became unrecognizable within a few generations.
Harte
JamesTB
This photo in particular stands out for me -
www.martingracephotography.com... -ancient-egyptians
What could have made those marks on the ground?
It's quite simple, really.
Those grooves are how they quarried granite - by bashing it out in the troughs you see - using diorote pounding balls, hundreds of which litter the entire quarry.
Hartet
Xtrozero
soficrow
...the idea being investigated here is that tools could have existed that stopped working due to environmental change and then, became unrecognizable within a few generations.
Maybe, but ...I really do not know where to start with the speculations.
soficrow
Start with analysis. First, consider a number of relatively common predictable events - maybe a supernova with the attendant bombardment of gamma and cosmic rays and neutrinos (but not at ELE level), a CME or two and a few geomagnetic storms, throw in a geomagnetic excursion and major disruption of the Global Electric Circuit - and consider what might happen if the effects of these events converge to impact our Earth at the same time. This is not speculative - mainly an if-then analysis - the research and evidence exist to measure and extrapolate effects for each event. Most likely, if these events converge we're looking at back-to-back earthquakes, volcanic eruptions, massive tsunamis, a disruption of our Earth's Global Power Grid that would render our technology unusable and then, a nuclear winter/ice age. Whatever the probability, such a convergence is not inconceivable.
The next step, again almost purely analytic, is to consider the potential impact on our current civilization. You might start with the effects on our communications technology and power grids, then go from there. Most major centers will be destroyed by earthquakes, volcanoes and tsunamis and the world's population will be decimated from the get-go. Don't forget the biological impacts of radiation exposure - the epigenetic and genetic impacts relative to dose-response impacts are also fairly well documented.
JamesTB
I disagree.
I don't see anything simple here at all. The diorite balls were not responsible for the markings we see on the ground in the photo they were probably left there way after the markings were made. This is a totally different technology to stone pounding balls.
Could you point out an area in the photo where you think a stone has been removed from the bed rock and also explain how it was done?
I agree lost technology would be conceivable, but we see nothing of its likes in the last 6000 years. Now if you are talking 200,000 years ago or longer then that would present maybe a chance with any evidence of lost tech also disappearing into decay. As we push farther into our past we would not be talking about humans at all, but some other humanoid like species.
soficrow - The next step, again almost purely analytic, is to consider the potential impact on our current civilization. You might start with the effects on our communications technology and power grids, then go from there. Most major centers will be destroyed by earthquakes, volcanoes and tsunamis and the world's population will be decimated from the get-go. Don't forget the biological impacts of radiation exposure - the epigenetic and genetic impacts relative to dose-response impacts are also fairly well documented.
xtrozero - One would first think about what could last an extremely long time. Many advance metals will last a very long time, stainless steel, Titanium, gold, platinum etc. Depleted uranium used in nuclear fuel would last a very long time as a signature of an advance society. Anything on the moon would last for 100s of millions of years, so I would say we are the first of this planet to get to the moon. We also would have shadows in rock of things that may have oxidized too.
I really don't think that we been around long enough to already have had an advance civilization that came and went with all evidence disappearing into the ages,
soficrow - Start with analysis. First, consider a number of relatively common predictable events - maybe a supernova with the attendant bombardment of gamma and cosmic rays and neutrinos (but not at ELE level), a CME or two and a few geomagnetic storms, throw in a geomagnetic excursion and major disruption of the Global Electric Circuit - and consider what might happen if the effects of these events converge to impact our Earth at the same time. This is not speculative - mainly an if-then analysis - the research and evidence exist to measure and extrapolate effects for each event. Most likely, if these events converge we're looking at back-to-back earthquakes, volcanic eruptions, massive tsunamis, a disruption of our Earth's Global Power Grid that would render our technology unusable and then, a nuclear winter/ice age. Whatever the probability, such a convergence is not inconceivable.
Xtrozero - This above sounds very Sitchin-ness but once again what technologies? Are we talking magic like proprieties that stopped working due to catastrophic events?
JamesTB
Harte
Those grooves are how they quarried granite - by bashing it out in the troughs you see - using diorote pounding balls, hundreds of which litter the entire quarry.
Hartet
I disagree.
I don't see anything simple here at all. The diorite balls were not responsible for the markings we see on the ground in the photo they were probably left there way after the markings were made.
soficrow
Not "Sitchinesque" at all. Pretty desperate move to try and blow off my ideas with such an inappropriate reference.
btw - What the heck do you mean by "magic"?
Xtrozero
I'm trying to get an idea for what you mean by advance technology, and it seems it is a form that we can no longer accomplish, can not comprehend, does work anymore....
yorkshirelad
Why do we have to resort to Aliens every time some ancient technology cannot be explained. There are many many tools nothing more than 150 years old that cannot be explained for the simple fact that all users are dead and the tool use was never documented. WE do not resort to aliens to explain victorian technology !!!
The idea "aliens" is soaked in meaning for too many people. If there is technology to travel around the universe that we have invented yet, and others have and different civilzations from different planets have met each other, gotten used to it, etc., then it's not really "alien" for them is it? Why shouldn't life off this planet be a concrete possibility to consider? To not do so would be like trying to figure out the history of a country without ever imagining the possibility that the inhabitants could have: left that country, been visited by others from other countries.
soficrow
"Does anybody reading this think a Spanish Conquistador plundering the New world would have known the difference or even cared before tossing these into a pile for shipping then later in Spain melting them down?"
FatherLukeDuke
soficrow
"Does anybody reading this think a Spanish Conquistador plundering the New world would have known the difference or even cared before tossing these into a pile for shipping then later in Spain melting them down?"
I've got to ask: so what?
Can I also ask, what is your definition of "advanced technology"?
5 Shockingly Advanced Ancient Buildings That Shouldn't Exist
The achievements of ancient cultures tend to be woefully unappreciated -- we think of the people as loincloth-wearing savages, and when we're proven wrong by some impressive feat of engineering, we just make a bunch of documentaries about aliens. But the engineers of times past were nothing to sneer at, and some of their accomplishments make ours seem slightly embarrassing.