Une solution (provisoire?) à un problème dont je n'étais absolument pas conscient:
Huge helium gas find in east Africa averts medical shortage
"The discovery of a vast reserve of helium in east Africa has allayed fears of a global shortage of the precious gas crucial for the running of brain scanners, major scientific facilities, and parties that require floating balloons and squeaky voices. According to independent analysts, the natural store of helium found in the Rift valley in Tanzania contains an estimated 54bn cubic feet of the noble gas, enough to inflate a similar number of party balloons, or to fill 1,200,000 hospital MRI scanners, researchers said. A team from the UK and Norway uncovered the huge resource after applying expertise gleaned from oil and gas exploration to understand how helium is produced in rocks under the ground and where it accumulates.
“This is a significant find,” said Jon Gluyas, professor of geo-energy at Durham University and a member of the discovery team. “There are reserves of helium gas, but they have been depleting quite quickly. The price has gone up 500% in 15 years.” The steep rise has occurred despite the discovery of a huge natural gas field in Qatar that contains a small percentage of helium gas. “We have to keep finding more, it’s not renewable or replaceable,” he added...."
la suite sur
https://www.theguardian.com/science...-tanzania-east-africa-averts-medical-shortage
Huge helium gas find in east Africa averts medical shortage
"The discovery of a vast reserve of helium in east Africa has allayed fears of a global shortage of the precious gas crucial for the running of brain scanners, major scientific facilities, and parties that require floating balloons and squeaky voices. According to independent analysts, the natural store of helium found in the Rift valley in Tanzania contains an estimated 54bn cubic feet of the noble gas, enough to inflate a similar number of party balloons, or to fill 1,200,000 hospital MRI scanners, researchers said. A team from the UK and Norway uncovered the huge resource after applying expertise gleaned from oil and gas exploration to understand how helium is produced in rocks under the ground and where it accumulates.
“This is a significant find,” said Jon Gluyas, professor of geo-energy at Durham University and a member of the discovery team. “There are reserves of helium gas, but they have been depleting quite quickly. The price has gone up 500% in 15 years.” The steep rise has occurred despite the discovery of a huge natural gas field in Qatar that contains a small percentage of helium gas. “We have to keep finding more, it’s not renewable or replaceable,” he added...."
la suite sur
https://www.theguardian.com/science...-tanzania-east-africa-averts-medical-shortage