FREEDOM BEGINS WITH A DECISION TO SACRIFICE AN OLD LIMITING BELIEF TO MAKE ROOM FOR A CONNECTION WITH HASHEM
Love Yehuda Lave
exposing the depth of Saturn's atmosphere
Scientists at the Weizmann Institute of Science have led one of NASA's most recent experiments with the European Space Agency
Like the opera heroine who produces her most heavenly sounds just before she leaves the audience for the last time, the Cassini spacecraft went out to its Grand Finale, the official name of the research mission that followed it into the atmosphere of the Saturn planet and went up in flames.
The swan song of NASA and ESA's research probe, named after Giovanni Domenico Cassini, a 17th-century astronomer from the opera country, was particularly virtuous: like a needle-threaded thread from a distance of 1.5 billion miles The old probe in the space between Saturn and its ring system and circled the planet 22 times polarized to the pole.
Prof. Yohai Caspi of the Department of Earth and Planetary Sciences and his research partner, team scientist Dr. Eli Galanti, led one of the experiments of the separation task and first calculated the depth of the atmosphere of the second largest planet in the solar system.
Scientists have found that the Saturnian jet streams, the most powerful in the solar system with winds of about 1,500 kilometers an hour, penetrate 9,000 kilometers below the planet's cloud cover.
Their research partners from Italy and the United States found that the rings identified with Saturn are particularly young - at most 100 million years old. These findings are published today in the scientific journals Science and Geophysical Research Letters.
In the months before the Grand Finale, opinions differed as to how Cassini's mission should be completed after 20 years in space. One thing was clear: the spacecraft could not remain in Saturn's system for fear that it would fall on one of the moons and cause its contamination.
A prominent possibility was to allow the scum to move out of the solar system like the Voyager spacecraft, which continues to sail around the universe 40 years after it was first launched. In spite of the temptation, the first measurements that came from another groping - Juno that has surrounded Jupiter since July 2016 - have tilted the scales. Juno's successful measurements led to the decision to send Cassini to a daring and daring mission. Prof. Caspi and Dr. Galanti, who lead one of the main experiments in the space mission Juno, were called to the flag in order to discover how deep the strong jet currents characterize Saturn.
Prof. Caspi: "NASA was eager to restore the success of justice. It was a big challenge - you came up with a method that worked for you in one place, and you have to put it in a short time in a different, more complex place; Is also composed because of the unique characteristics of Saturn - for example the extent of its density - and also because the measurements were less successful, since unlike Juno, the instrument at Cassini was not meant for it.
Like Juno and Jupiter, calculating the depth of the winds and the dimensions of Saturn's atmosphere was made possible by the combination of gravitational field measurement by means of a Doppler shift of a radio wave sent from Cassini to Earth and a theoretical model of the scientists connecting the gravitational field to the wind field. "In contrast to Jupiter, we had to cooperate with the groups that studied the inner structure of Saturn, and together we found that the atmosphere is 9,000 kilometers - three times more than just right - on both planets, the data coincides with the depth at which the magnetic field begins to be significant, R. Galanti.
"Our theory worked twice, which makes it much more powerful: in both cases we took the winds to the surface, dropped them inwards in a direction parallel to the axis The rotation - and found that they were fading at a point where the magnetic field was strong enough to stop the flow. "
Saturn's most famous feature is undoubtedly the rings surrounding it, which are about 20 meters thick on average, and consist mainly of ice water and a cosmic struggle that has accumulated over the years.
There is no scientific consensus today on how these rings were formed, but recent Cassini measurements showed that the rings were 10 to 100 million years old - in a flash about the formation of the solar system some 4.5 billion years ago. The dinosaurs extinct 65 million years ago, apparently "recognized" another version of Saturn - without the iconic ring system.
According to the U.S. Centers for Disease Control and Prevention, "many people with heart disease do not act on early warning signs." The longer a heart attack goes undetected, the greater the damage to the victim's heart. A device developed in Israel could radically change how we detect heart attacks by making the process simpler, quicker and cheaper.
Emil Katz, founder and CEO of Israeli medical products company Novamed, has developed a device called SensAheart, roughly the size of a USB stick, which tests a drop of blood for antibodies that are produced in the event of a heart attack. The test can identify heart attacks that have occurred as recently as an hour ago, or as long ago as several days. Existing blood tests can take up to six hours to deliver a result.
I waited five minutes for the result of my test. Moreover, Dr. Chaim Lotan, director of the Heart Institute and Cardiovascular Division at Hadassah Ein Kerem Medical Center in Jerusalem, discovered that SensAheart is more accurate than the current available test. The device is available in Europe and Israel, but not yet in the U.S.
Israel's Technion Institute has developed the technology to detect Parkinson's disease through the patient's breath. The scientists in charge have achieved an efficiency of about 81% of precision, almost the same achieved with magnetic resonances.
The device developed in the Technion and its applied software manages to detect the chemical signatures of several diseases including Parkinson's, which already affects 10 million people worldwide. The early detection of Parkinson's is of great importance to achieve treatments that favor the patient, although the disease is incurable.
The reduction in the early stages of Parkinson's in the loss of neurotransmitters could mean a new paradigm in the treatment of the disease and neuroprotection therapies, and present new expectations very different from the current protocols based on available means. Another of the benefits of this project is the possibility of diagnosing patients who have not been previously medicated, that is, those who will face the diagnosis of Parkinson's for the first time.
The Technion team, led by Prof. John Feinberg and Prf. Hossam Haick, has managed to assemble a multinational contingent dedicated to refining the device and its technique. They say early detection will definitely produce a more appropriate and efficient treatment.
Technically it may seem like chaos to the normal individual: 40 different sensors detect at a nano-level, different marker molecules that uncover the disease with a precision that eliminates the use of aggressive, invasive, uncomfortable and costly means. The method also promises to be faster and cheaper and would ultimately be used across the globe as a standard test for Parkinson's.