MIT introduces pathfinder technology in underwater communication.

 MIT introduces pathfinder technology in underwater communication. 

Acoustic communication that uses coherent sound waves is not a new thing. Submarines have used that technology for years. The idea is that, if the system communicates with coherent acoustic beams, outside observers cannot hear that sound. Also, coherent, mono-frequent systems can communicate through longer distances, if researchers can find the frequency where there are no other disturbing sound effects. Those silent frequencies exist in acoustics as well they exist in electromagnetism. 

There are many versions of acoustic communication systems. Some of them use chemical batteries, and some others use systems that deliver electricity when they react with sodium that is in seawater. In some versions, the system uses a vertical tube. When water travels through that tube it rotates dynamo. The  MIT system uses piezo-electric crystals that deliver energy when pressure impulses hit them. 

"MIT’s breakthrough underwater communication system uses minimal power to transmit signals over kilometer-scale distances. Leveraging underwater backscatter and innovative design principles, the technology has potential applications in aquaculture, climate modeling, and hurricane prediction". (ScitechDaily.com/Submerged Signals: MIT Unveils Pioneering Development in Underwater Communication Technology)

"The device is an array of piezoelectric transducers that enables battery-free underwater communication. Credit: Courtesy of the researchers." (ScitechDaily.com/Submerged Signals: MIT Unveils Pioneering Development in Underwater Communication Technology)

That ability makes it possible to make a system where the receiver transforms acoustic signals into electricity very effectively. Also, regular receivers transform acoustic signals into electricity. But those piezo-electric crystals can send electricity to miniaturized microchips. 

The MIT researchers created a system that uses very low power. The idea is to benefit piezo-electric crystals for power sources in low-power-long-distance communication. The low-power acoustic communication can used in underwater sensors. The piezo-electric crystals can be used in the receiver and transmitter's power source. When an acoustic signal hits those piezo-electric crystals they deliver electric impulses. 

The low-power communication system can be a solid tube, or it can look like a tube, made of chicken coop. The leader transmitter can be in the middle of the bottom of that system. And the side transmitters that send soundwaves to that standing wave can be at the sides of the structure. The piezo-crystals can also give electricity to miniature sensor systems that are integrated with loudspeakers. That system can look like carbage, and it can collect information from hostile naval bases. 

https://scitechdaily.com/submerged-signals-mit-unveils-pioneering-development-in-underwater-communication-technology/

The new piezoelectric fabric hears the sound of the heart.

 

(An MIT team has designed an “acoustic fabric,” woven with a fiber that is designed from a “piezoelectric” material that produces an electrical signal when bent or mechanically deformed, providing a means for the fabric to convert sound vibrations into electrical signals. Credit: Greg Hren) (SciTechDaily/New “Acoustic Fabric” Hears Your Heart’s Sounds)

Piezoelectric nanotechnology is not a new thing. There is made research with fabric and clothes that can recharge mobile telephones. The idea of those systems is that the body movements can change to electricity by using piezoelectric fabric. But the same style of piezoelectric fibers can use as the fabric that can hear the heart. Or it can use as a microphone that can transform the resonance of layers to electric impulse and sound. 

The new acoustic fabric is made by using piezoelectric material. That material allows the fabric to hear the sound of the heart. And this thing makes it possible to create new intelligent clothes that are observing the condition of humans or animals. The clothes that are made by using this intelligent material can connect to the wristwatch-size computer that resends the biometric data to the mobile telephone. And the mobile telephone can communicate with any computer in the world. 

But the same system can use as the microphone. The user can put acoustic fabric against a table or to the wall. And that thing resends oscillation of the layer to the computer that can decode those signals to sound. The acoustic fabric can use in microphones that are looking like fabric boards. That thing opens new visions in the eavesdrop and recording tools. 

The same fabric can use to make new microphones that are allowing to hear things that are happening behind the wall. The idea of this kind of microphone is that the acoustic fabric is put against the wall. And then the user of that system can connect the fabric to the small computer and then to the mobile telephone. That allows sending the information about discussions to long-distance through the internet. 

https://scitechdaily.com/new-acoustic-fabric-hears-your-hearts-sounds/

https://likeinterstellartravelingandfuturism.blogspot.com/

   

 The new ion drive makes aircraft operate without moving parts. 

Ion drive is making it possible to create an aircraft that flies without moving parts.  In this kind of model, the ion system can get energy from the small turbogenerators. Or it can deliver from Earth by using the maser rays. 

There are many models of what this kind of airplane can look like. The film above this text introduces the MIT solution. There is a very interesting similarity between this concept and Wright-brothers Flyer I from Kitty Hawk that flew the first motorized flight in 1900. 

The thrust of that kind of ion engine that is introduced in the film is not very big. But if the system is equipped with internal turbines, it can be a powerful tool. The fact is that the regular jet turbine can also equip with an ion assistant. That means that the air will ionize at the front of the engine. 

And then it will pull backward past the combustion chamber. Also, the ion system can use to accelerate the air at the start of the ramjet or scramjet engine. The engine will ionize air at the front of the engine and then the magnets will pull ionized air backward. That increases the temperature and speed of the airflow to the level that the engine can start. 

But there is the possibility that the normal bi- or triplane could also use an ion engine. Or the ion engine can also install in supersonic aircraft. In bi-or triplanes, the front line of the wings can ionize the air. And then the magnetic tracks will pull those ions backward. In the super- and hypersonic aircraft at the front of the aircraft is the stick that ionizes the air. 

And then, the ion system will simply pull those ions over the wings. The ion systems can also make it possible to create wingless aircraft. In those models, the small flaps connected to the body. And the purpose of the system is to create overpressure to the wanted side of the aircraft. When the flap is turning outside it will increase the pressure at its side. The ions would pull over the body. And that thing is making the craft slide through the air. 

There is also introduced that the regular propeller aircraft can equip with an ion drive. The propeller of the propeller-aircraft like the P-51 Mustang can use also as an ionizer that ionizes the air. Then the magnetic tracks will pull the ions backward and that thing turns the P-51 into a silver bullet that travels through the skies. 

https://thoughtsaboutsuperpositions.blogspot.com/

Why humanoids seem to be naked?

https://marxjatalous.blogspot.com/

Kimmo Huosionmaa

Have you seen the most modern bioprotective suits, what are invented at MIT (Massachusetts Institution of Technology)? Those protective suits are very thin, and they seem like latex. The mission of the thin structure is to pressure the body of the user, and that would give the user a limited space walk capacity. Only the holes of the body must be protected from the emptiness, and the structure must keep empty space outside of the body, and that suit could be used in an emergency situation if the spacecraft would get the leak.


Of course, those astronauts must use normal space suits because of radiation and cold, but that suit can give them a couple of seconds or minutes more time to get in the better space suits. And those protective suits are giving protection against biological threats, or they can also decrease the evaporation when those persons would not have to drink so much. They can also protect the skin from abrasions and make the use of normal clothes and space suits more comfortable. The idea of those suits is, that there would be no space between skin and suit, and in some cases, the skin of the user would be sterilized, because that would deny the skin infections. Those suits have brought the thing in my mind that maybe the humanoids or creatures, what are seen in cases of abductions, might use that kind of suits.


Here is writing about the extraterrestrial things for this day. In this writing, the word "humanoid" means the creatures, what have been seen in the cases of abductions. This is about the question, why humanoids seem to have no clothes in the abduction cases? If those creatures would exist, the reason, why we would see only the creatures, what seems to be naked, but who would not have sex organs, might be caused because those creatures would have thin protective overalls over their bodies. Those protective overalls deny, that the bacteria would not be contacted with the skin of those creatures.


The thin shape would make those overalls safer because the costume would not rupture if it would be stuck to some nail or something like that. The material, what is used in that suit might be some kind of mylar, and one reason, why it's thin, would be that the user would not need to drink so much. Thin structure denies the evaporation. And also abrasions are denied by using this kind of structure. But those kinds of overalls denies also leaving the DNA in the place.


If those abductors would be some extraterrestrial habitats, the reason for missing sex organs might that they are removed, because those aliens would not be wanted to deliver their DNA to the places, where they operate. And that kind of things can also create by humans by sterilizing the skin of those operators. If the used sterilizer would delete all bacteria from the skin, that would cause the situation, that if the operator would not use the protective clothing, the bacteria or mushrooms would kill this person immediately. So this kind of protective clothing could be used to keep some persons in control, and they cannot go anywhere in secrecy.