A problem uncovered by a space agency
When NASA began sending astronauts beyond the Earth's magnetosphere in the 1960s and 70s, it noticed something unexpected. Outside the protective field that surrounds us on the planet's surface, crews began showing signs of irritability, aggression and even conflict on board the spacecraft. Alongside the expected physical effects of weightlessness — loss of muscle mass, weakening bones — there was also a clear disturbance of mental state, which some researchers linked to the absence of the Earth's natural electromagnetic environment.
The Earth's surface, after all, is not “quiet” in the electromagnetic sense. The whole planet constantly vibrates at a frequency known as the Schumann resonance, averaging around 7.8 Hz — a frequency that matches alpha brain waves, the state of relaxed alertness in which the human body functions optimally. When the astronauts lost contact with that signal, their bodies lost the reference point they normally attune to automatically.
According to a story passed down among researchers for decades, the answer was simple yet far-reaching: a small device was developed that artificially generated a pulsing magnetic field at the Schumann resonance frequency. Astronauts exposed to that field returned to a normal, composed state. The story is often cited as one of the first examples of the idea that the human organism needs certain natural frequencies to stay in balance.
Within the community of HSC distributors, an additional, unofficial story about that first device has circulated for years — that it wasn't displayed as a dedicated technical instrument, but deliberately disguised as an ordinary name badge, the kind every astronaut wore on their uniform or spacesuit anyway. According to this story, it was the very same type of badge an astronaut would have worn regardless, except that hidden inside it was a programmed circuit — individually tailored, programmed specifically for each astronaut. This detail is not part of NASA's officially published documentation, nor is it confirmed in available sources, so it should be understood as oral tradition handed down as part of the technology's origin story rather than as established fact. It is interesting above all because, if true, it points to something that later proved key in the development of HSC technology as well: the idea that a protective field works best when it is tailored to a specific person rather than generic and impersonal.
At the time, in the mid-20th century, the technology was classified and unavailable to the public. But the seed had been sown — the realisation that the electromagnetic environment is not just a physical phenomenon we measure with instruments, but something that shapes our health, mood and biology every day.
The Swiss connection: Heinz Reinech
A decade later, the German scientist Heinz Reinech, who had collaborated on NASA research during the 70s, continued developing this branch of Tesla's scalar technology in Switzerland, outside institutional frameworks. His work never received much media attention, but according to people who worked with him, he applied scalar principles in a number of practical, socially beneficial projects — including, according to unofficial sources, the restoration of a polluted, toxic lake that he turned overnight into a body of water fit for swimming.
Reinech did not publish in scientific journals or seek publicity. He passed on his knowledge in person, through collaboration and friendship — and one of the people he entrusted with those insights was the Croatian entrepreneur Slavko Lauš.
Slavko Lauš and the road from Switzerland to Croatia
Lauš met Reinech while living in Switzerland and built a close relationship of trust with him. Recognising his interest in the subject, Reinech passed on to him the fundamental principles of applying Tesla's scalar technology — knowledge he had built up himself over decades, partly drawing on what NASA had first applied to astronauts.
In the 1990s, Lauš returned to Croatia and founded a successful company in the metal industry. But when mobile phones became widespread in the late 90s and early 2000s, someone drew his attention to the growing concern about electromagnetic radiation. With the capital and the knowledge he had gained in Switzerland, Lauš decided to invest in developing his own laboratory and patent — with the aim of offering people a product that would help them cope with what he saw as a coming threat of everyday life surrounded by wireless devices.
The result was the first patent and the first product: the NESU smart card. Over the following decades the technology was refined, with the renowned Croatian physicist Davor Pavuna also making a significant contribution to its further development. In 2019, following a change in ownership, the product was redesigned and rebranded as what we know today as HSC technology — with an expanded product portfolio that all shares the same technological foundation.
Why the astronaut story is more than just an interesting anecdote
What links NASA's experience in the 60s with today's HSC smart card is not a marketing metaphor, but the continuity of the same core idea: that the electromagnetic environment we are exposed to can affect our body and balance, and that there is a way to “give back” to the body its natural reference frequency — whether we are on a space station or sitting next to a Wi-Fi router.
A few details from the broader story of this technology's development stand out in particular:
- The 7.8 Hz frequency is not random. It corresponds to the alpha range of brain waves — a state in which a person is both relaxed and fully focused. It is the same range NASA's engineers relied on when building the first device for astronauts.
- The problem was not limited to humans. According to an often-retold anecdote, when a TV transmitter was installed near farmland in New Zealand in 1970, farmers noticed that their cows began showing signs of stress and needed extra mineral supplements in their feed to stay in balance — an illustration that the effects of the electromagnetic environment are not confined to the human nervous system alone.
- The “single frequency” idea proved problematic. Both NASA's original device and later systems based on a fixed, uniform frequency had limited long-term effect, because the organism adapts and “gets used to” a static signal — one of the reasons why later generations of this technology, including HSC, rely on a dynamic, changing scalar pattern that never repeats identically.
Conclusion
The path from NASA's research in the space program, through Reinech's quiet work in Switzerland, to Lauš's laboratory in Croatia is a rare example of a technology that emerged outside the commercial labs of large corporations — passed on in person, from one generation of researchers to the next, right up to today, when it is available in the form of the HSC smart card and the Correlator. The astronaut story remains a reminder that the question of the body's electromagnetic balance is far older and more serious than the arrival of 5G networks — it reaches back to the very beginnings of space exploration.