Showing posts with label radio waves. Show all posts
Showing posts with label radio waves. Show all posts

Friday, June 27, 2025

What was first: energy or the Big Bang?


The problem with cosmology is the universe’s size. When we think that gravity stretches light that means that massive objects seem to be at longer distances than they really are. The virtual redshift means that massive objects stretch light waves. And that means we see light as more red because of that effect than it really is. So because gravity stretches light all objects seem to be more red than they are.  When we look at objects from different angles the gravity and curvature of light make images distorted. Black holes pull light waves almost straight. And it's possible. The massive gravity pulls electromagnetic radiation longer so much that the visible light or IR radiation turns straight into radio waves. 

Did photons or energy exist before the Big Bang? The answer is that energy cannot come from anywhere. So there should be some kind of wave movement that focuses on the event where material and energy formed in the form as we know them. When we think of the Big Bang as a series of events that turned material and energy into form as we know them, we must realize that even if the Big Bang was only one single event there could be material that is impossible in our universe. In the just born universe energy level was higher. 



And maybe the higher energy quarks like bottom and top quarks could form short-term material like “hydrogen”. Their top quark and bottom quarks form the “proton” and the muon orbits that structure. Those things are impossible in the modern universe. And those structures vanished just after the Big Bang. Just after the Big Bang formed matter and antimatter. Then those particles and their mirror particles formed giant annihilation. So maybe the asymmetry in the wave-particle duality happened when some event like a primordial black hole pushed a little bit of material away from the antimatter. That great annihilation can form black holes because their energy level is so high. 

There are models of the Big Bang as a series of events, and some astronomers searched the place where that event happened. But there is no visible evidence of that place’s existence. There are theories that maybe some material formed a black hole just after the Big Bang. And that black hole could form the center of the universe. The idea is taken from the nuclear bomb explosions. When the Big Bang happened it pushed material into a ring-shaped structure. 



There formed a massive quantum vacuum or cosmic void in the middle of that ring. Then part of the material could fall back to the point where the Big Bang happened. When we think about models there the Big Bang was a series of events. We can imagine a situation where in the space before the Big Bang two strings or superstrings impacted. That impact formed the ring-shaped string called a photon. That photon started to form a quantum vacuum in it. Then that thing caused an effect where the quantum fields started to focus around that point. Then that energy broke out from that point. 

There are also models where the giant “photon” surrounds our universe whose geometrical shape can be like some kind of flat disk. The normal model says that the photons were formed seconds after the Big Bang. So could photons exist before the Big Bang? That could require the existence of the multiverse. The thing is that if those “photons” existed before the Big Bang I must say that they might have very little thing to do with the modern photons. And maybe the Big Bang began when those things formed. 

In String and Brane-theories the thing that began the Big Bang was the hole that formed in the wave movement before the Big Bang. That hole caused the upper Brane or dimension to fall through the energy bottom and smash with that wave movement. That pushed energy into that point forming the particles and energy. So, particles are droplets from the energy impact that happened a long time ago. 

The expansion of the universe supports superstring theory where the universe exists in the giant superstring. That expansion happens because the universe and material release energy into supersting.  In the newest theory time is the only real thing in the universe. And that means everything happens in and because of time. 

https://www.livescience.com/space/cosmology/did-light-exist-at-the-beginning-of-the-universe

Friday, December 27, 2024

Researchers noticed that AI has its Achilles heel.



"Researchers showed AI models can be stolen by analyzing device signals, risking intellectual property and security. Countermeasures are now needed. Credit: SciTechDaily.com" (ScitechDaily, AI’s Achilles’ Heel: Researchers Expose Major Model Security Flaw)

The AI is the computer program.  Or a very complex computer program. With multiple layers. That means if somebody attacks the AI server that hosts the large language model, LLM. That makes it possible to steal the AI. Basically, that means the hacker can download the LLM source code into that person's own server. 

Researchers from South Carolina State University. Made an Attack on the AI server. Using electromagnetic waves. That means they didn't make a straight attack against the server. That means the server's firewalls and other things are helpless against the attack. The technology that those people used based the electromagnetic waves. 

"Researchers used electromagnetic signals to steal and replicate AI models from a Google Edge TPU with 99.91% accuracy, exposing significant vulnerabilities in AI systems and calling for urgent protective measures." (ScitchDaily, AI’s Achilles’ Heel: Researchers Expose Major Model Security Flaw)

"Researchers have shown that it’s possible to steal an artificial intelligence (AI) model without directly hacking the device it runs on. This innovative technique requires no prior knowledge of the software or architecture supporting the AI, making it a significant advancement in model extraction methods." (ScitchDaily, AI’s Achilles’ Heel: Researchers Expose Major Model Security Flaw)

“AI models are valuable, we don’t want people to steal them,” says Aydin Aysu, co-author of a paper on the work and an associate professor of electrical and computer engineering at North Carolina State University. “Building a model is expensive and requires significant computing sources. But just as importantly, when a model is leaked, or stolen, the model also becomes more vulnerable to attacks – because third parties can study the model and identify any weaknesses.” (ScitchDaily, AI’s Achilles’ Heel: Researchers Expose Major Model Security Flaw)

"The researchers stole the hyperparameters of an AI model that was running on a Google Edge Tensor Processing Unit (TPU)". (ScitchDaily, AI’s Achilles’ Heel: Researchers Expose Major Model Security Flaw)

So, by using this method. Researchers were able to determine the architecture and specific characteristics – known as layer details – researchers and later hackers, would need to make a copy of the AI model.

When an electromagnetic wave travels through another field affects its strength. That means. Things like radars that send electromagnetic waves through data lines can read data that travels in those lines. The idea is that the system acts like an X-ray system. It sends a radio wave through the data line and the sensor at the opposite side detects changes in that field and it can read data. 

The laser system that makes laser rays scatter can used to steal data from optical networks. Or the system can create a hologram around the laser ray. If the laser ray oscillates that hologram can steal information from those laser rays. 

If somebody can steal the LLM that is a very bad thing. Developing those things is expensive. But there is always some other possibility. Bad boys can use those stolen computer programs to create the evil twin for the use of China, North Korea, and Russia. In the wrong hands, the LLM can create virus codes and control cyber-attacks. 

Normally the ability to make malicious code is denied from legal or official LLMs. But in illegal copies, those abilities can exist. So, hackers can use those LLM evil twins for cyber attacks and industrial espionage. The LLM can also make cyber attacks on surveillance systems. 


https://scitechdaily.com/ais-achilles-heel-researchers-expose-major-model-security-flaw/

Thursday, November 14, 2024

Light tornadoes. Along with high-speed, high-power radio waves can increase network power.


"By employing quasicrystals, researchers at Aalto University have found a new way to enhance data transmission using light vortices, potentially multiplying the current capacity of optic fibers by 8 to 16 times. Credit: SciTechDaily.com" (ScitechDaily, Laser Storms: Physicists Create “Light Hurricanes” for 16x Faster Data Transmission)

The light tornadoes can increase the speed of the network by 16X. From its present speed. The light tornado is one of the ways how to make faster and probably safer networks. The light-based network would be the tool of the future. The laser-based networks are easier to protect. And they can support things like quantum computers better than modern electric-based networks.

When a light tornado travels inside another laser ray, that prevents the attackers from seeing the message. That is an idea of the quantum network. In quantum networks, the attacker cannot reach information without disturbing the network. If somebody puts a sensor through the laser ray. That thing means that there is a cut in the protecting laser ray. The optical networks are harder to jam than electric or radio wave-based systems. The problem is that the laser ray cannot travel through barriers like walls. 

It's possible. The system shoots laser rays to the sensor, which resends them through the wall using an optical data cable. Inside the house, the system can use radio waves. If the house is at the same time as the Faraday cage that radio impulse cannot travel out from it. The Faraday cage denies the inside radio waves travel out from the house. The radio wave-based relay station can send data because people who are outside the Faraday cage cannot hear the signal. 



"Artist’s illustration of a magnetar, surrounded by the plasma bubble responsible for the persistent emission observed in some fast radio bursts. Credit: S. Dagnello, NSF/AUI/NRAO" (ScitechDaily, Plasma Bubbles: The Secret Engines Behind Fast Radio Bursts)

Magnetar is a neutron star with an extremely powerful magnetic field. The magnetic field stresses the plasma ring around the magnetar. When the energy level in plasma is high enough, that plasma sends radio waves in both directions. About half of that energy goes to space. But half of it travels into the plasma ring. That radio wave impacts a very strong magnetic field. 

That increases its power. The thing is that the energy level in the plasma ring must be higher than in the magnetar so that the radio wave can travel inside it. The impacting radio waves form the standing wave. And then sooner or later. The energy that comes or reflects from the plasma presses the standing wave against the magnetar's spin axle. And it's possible that researchers can copy those conditions to communication systems. 

One way to make the network secure is to use coherent radio waves, or radio masers to communicate. 

The knowledge of the fast radio burst, FRB can make it possible to create extremely accurate high-power radio bursts. The idea is that the system can make the plasma ring around the magnets. Then the system shoots high-energy impulses to those plasma rings. The plasma ring sends the extra energy into the middle of the plasma ring. If that kind of reaction happens near neutron stars the plasma ring sends the radio burst straight to the spin axle of the neutron star. 

That thing makes it possible that the plasma and electromagnetic fields will increase the power of the radio bursts. The idea is that there is an energy stick in the middle of the neutron star. When the plasma ring that orbits the neutron star at its equator sends energy impulses, that energy stick between neutron star poles sends the energy impulses to the neutron star's poles. 

But the knowledge of things like fast radio bursts can make it possible to create a network that is hard for jammers. The extremely powerful radio maser can be the plasma rings around the antenna. Then that plasma sends radio impulses to the antenna. And that thing can send high-energy radio waves that can be used as a communication tool. But those radio waves can destroy drones or computers. The crossing of radio waves can also create electric arcs. 


https://scitechdaily.com/laser-storms-physicists-create-light-hurricanes-for-16x-faster-data-transmission/


https://scitechdaily.com/plasma-bubbles-the-secret-engines-behind-fast-radio-bursts/

Green stars and strange binary stars. And post-stellar planets.

“Artist’s impression of ZTF J0440+2325, a brown dwarf (right) and a red dwarf (left) that orbit each other every 86.65 minutes. The brown dw...