I'll be presenting "What Physicists Don't Know About Electromagnetism" at the Huntsville Hamfest, 2pm today in the Madison Room.
https://hamfest.org/forums
A video of the LibertyCon version of this talk is here: https://youtu.be/1wrF_9pxVKI
Summary:
In the 1940s, physicists and engineers alike used Stratton’s Electromagnetic Theory as their text. They learned about such applied topics as simple antennas, waveguides, arrays, even radio wave propagation over the earth. Today, physicists use Jackson’s Classical Electrodynamics. There’s still material on simple antennas and waveguides, but nothing on arrays and the only practical case of radio wave propagation mentioned is Schumann resonances.
Meanwhile radio scientists and electromagnetic engineers have taken Schelkunoff’s concept of “impedance” and put it to work in a host of practical applications understanding transmission and reflection of microwave signals. They’ve worked out link laws that describe what fraction of energy makes it from a transmitter to a receiver, or reflects from a target in a radar system. They’ve worked out fundamental equations for physical limits on the size and performance of small antennas.
What else don’t physicists know about electromagnetism? And what implications does it have for our understanding of how the world works?
Find out in this talk!
https://hamfest.org/forums
A video of the LibertyCon version of this talk is here: https://youtu.be/1wrF_9pxVKI
Summary:
In the 1940s, physicists and engineers alike used Stratton’s Electromagnetic Theory as their text. They learned about such applied topics as simple antennas, waveguides, arrays, even radio wave propagation over the earth. Today, physicists use Jackson’s Classical Electrodynamics. There’s still material on simple antennas and waveguides, but nothing on arrays and the only practical case of radio wave propagation mentioned is Schumann resonances.
Meanwhile radio scientists and electromagnetic engineers have taken Schelkunoff’s concept of “impedance” and put it to work in a host of practical applications understanding transmission and reflection of microwave signals. They’ve worked out link laws that describe what fraction of energy makes it from a transmitter to a receiver, or reflects from a target in a radar system. They’ve worked out fundamental equations for physical limits on the size and performance of small antennas.
What else don’t physicists know about electromagnetism? And what implications does it have for our understanding of how the world works?
Find out in this talk!
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Forwarded from Today I Learned
TIL Hiram Bingham wasn’t the first to rediscover Machu Picchu. Peruvian farmer and explorer Agustín Lizárraga had arrived 9 yrs earlier, leaving an innoscription "A. Lizárraga 1902." Sadly, he died one year after Bingham’s arrival, and his innoscription was erased by Bingham for "preservation reasons."
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Reddit
From the todayilearned community on Reddit: TIL Hiram Bingham wasn’t the first to rediscover Machu Picchu. Peruvian farmer and…
Explore this post and more from the todayilearned community
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Forwarded from The Health Forum NZ (New Channel)
NZ LABOUR COMISSIONED THIS REPORT WHICH WILL CHANGE YOUR LIFE....
There has probably never been a more important election for the future direction of New Zealand #nz
Before you cast your vote you would be best served to know about this...
It's called PLANNED RELOCATION and it's coming to a town near you
An expert working group, commissioned by Labour's Climate Change Minister, delivered a report this week ....quietly.
Quote:
Where the evidence shows a community is likely to be wiped out in as few as 10 years, that poses an "intolerable level of risk" to the community’s safety or its continued viability. "The only rational response, in the absence of a feasible, cost-effective alternative, will be to relocate the community to a safer place."...
There has probably never been a more important election for the future direction of New Zealand #nz
Before you cast your vote you would be best served to know about this...
It's called PLANNED RELOCATION and it's coming to a town near you
An expert working group, commissioned by Labour's Climate Change Minister, delivered a report this week ....quietly.
Quote:
Where the evidence shows a community is likely to be wiped out in as few as 10 years, that poses an "intolerable level of risk" to the community’s safety or its continued viability. "The only rational response, in the absence of a feasible, cost-effective alternative, will be to relocate the community to a safer place."...
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Forwarded from The Health Forum NZ (New Channel)
What if you say NO?
"in the final reckoning, it recommends communities be relocated using new legislated emergency powers, with NO RIGHT OF COURT APPEAL."
What are some of the recommendations?
*There should be no appeals to the courts on relocation programmes.
*And the relocation of communities would be comprehensive. At the end of a relocation programme, land in the at-risk area should no longer be allowed to be used
*the working group proposes a far greater degree of central coordination and control of managed retreat than had been previously anticipated
*the ability to change land ownership through the acquisition, and cancelling of noscripts to land, the ability to change uses of relocated land, and the payment of compensation and support to affected people
*a process where authorities (central and local government and private providers) can apply to withdraw services like roads and bridges from a property before or during a planned relocation;
*support to property owners is given on a specified basis, up to a cap per property, and any COSTS above the cap would be BORNE BY THE INDIVIDUAL PROPERTY OWNER.
*MAORI and non-governmental organisations would get the most COMPENSATION then owner-occupied homes
*BACH and holiday home owners should NOT RECEIVE COMPENSATION payments at all, though they might receive some modest assistance with demolition or clean-up costs.
Read the article for a plethora of other surprises
#nz #informedconsent
https://www.newsroom.co.nz/pro/ministers-advised-to-use-emergency-powers-to-relocate-families-at-climate-risk
"in the final reckoning, it recommends communities be relocated using new legislated emergency powers, with NO RIGHT OF COURT APPEAL."
What are some of the recommendations?
*There should be no appeals to the courts on relocation programmes.
*And the relocation of communities would be comprehensive. At the end of a relocation programme, land in the at-risk area should no longer be allowed to be used
*the working group proposes a far greater degree of central coordination and control of managed retreat than had been previously anticipated
*the ability to change land ownership through the acquisition, and cancelling of noscripts to land, the ability to change uses of relocated land, and the payment of compensation and support to affected people
*a process where authorities (central and local government and private providers) can apply to withdraw services like roads and bridges from a property before or during a planned relocation;
*support to property owners is given on a specified basis, up to a cap per property, and any COSTS above the cap would be BORNE BY THE INDIVIDUAL PROPERTY OWNER.
*MAORI and non-governmental organisations would get the most COMPENSATION then owner-occupied homes
*BACH and holiday home owners should NOT RECEIVE COMPENSATION payments at all, though they might receive some modest assistance with demolition or clean-up costs.
Read the article for a plethora of other surprises
#nz #informedconsent
https://www.newsroom.co.nz/pro/ministers-advised-to-use-emergency-powers-to-relocate-families-at-climate-risk
Newsroom
Ministers advised to use emergency powers to relocate families at climate risk
The Government has sought to defuse and bury an expert working group report on managed retreat until after the election – but it's more explosive advice won't be easily contained. Jonathan Milne reports.
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Forwarded from DD Geopolitics
A large-scale scheme for earning money on dodgers was exposed in Nikolaev: according to the investigation, this scheme was organized by the hospital director. He was arrested along with an accomplice.
The defendants created fake medical documents with fictitious mental illnesses in order to get a basis for deregistration. For such "documents" they charged 1.5 thousand dollars.
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Forwarded from Trump History
In this photograph, A young Donald Trump teaches J. Robert Oppenheimer how to build an atomic bomb during the Manhattan Project - 1943
Donald J. Trump History
Donald J. Trump History
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Forwarded from K C
"The student population at risk simple because university faculty members remain afraid of a virus that has evolved to be less dangerous. It will also be around forever." This isn't fear. This is narcissism; this is the faculty and administration refusing to admit that they were wrong and doubling down to create plausible deniability for the inevitable wrongful death lawsuits to be brought against them by grieving families. "We didn't know! See? We consistently kept the same requirements!"
https://www.thegatewaypundit.com/2023/08/most-anti-science-college-america-set-kick-students/?utm_source=rss&utm_medium=rss&utm_campaign=most-anti-science-college-america-set-kick-students
https://www.thegatewaypundit.com/2023/08/most-anti-science-college-america-set-kick-students/?utm_source=rss&utm_medium=rss&utm_campaign=most-anti-science-college-america-set-kick-students
The Gateway Pundit
"Most Anti-Science College" in America Set to Kick Out Students this Month for Being Unvaccinated - Senator Rand Paul Responds…
The university often referred to as the “most anti-science” college in the U.S.
Forwarded from Punished Clossington
“Dig up the Irish tombs, ancient Anglos stashed the Ark of the Covenant somewhere in there”
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Forwarded from Floridian Barbarian (Big Daddy)
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Forwarded from Disclose.tv
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NEW - Trump: "I believe we have a compromised president. He was bribed and now he’s being blackmailed. He’s a Manchurian candidate."
@disclosetv
@disclosetv
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Forwarded from Chief Nerd
New Peer-Reviewed Study Finds a 74% Reduction in Excess Deaths Among Peruvian Populations Taking Ivermectin in 2020
“Reductions in excess deaths over a period of 30 days after peak deaths averaged 74% in the 10 states with the most intensive IVM use. As determined across all 25 states, these reductions in excess deaths correlated closely with the extent of IVM use (p<0.002).
During four months of IVM use in 2020, before a new president of Peru restricted its use, there was a 14-fold reduction in nationwide excess deaths and then a 13-fold increase in the two months following the restriction of IVM use.”
https://x.com/thechiefnerd/status/1690824907330883584
https://www.cureus.com/articles/172991-covid-19-excess-deaths-in-perus-25-states-in-2020-nationwide-trends-confounding-factors-and-correlations-with-the-extent-of-ivermectin-treatment-by-state#!/
@ChiefNerd
“Reductions in excess deaths over a period of 30 days after peak deaths averaged 74% in the 10 states with the most intensive IVM use. As determined across all 25 states, these reductions in excess deaths correlated closely with the extent of IVM use (p<0.002).
During four months of IVM use in 2020, before a new president of Peru restricted its use, there was a 14-fold reduction in nationwide excess deaths and then a 13-fold increase in the two months following the restriction of IVM use.”
https://x.com/thechiefnerd/status/1690824907330883584
https://www.cureus.com/articles/172991-covid-19-excess-deaths-in-perus-25-states-in-2020-nationwide-trends-confounding-factors-and-correlations-with-the-extent-of-ivermectin-treatment-by-state#!/
@ChiefNerd
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