A mineral made in a Kamchatka volcano may hold the answer to cheaper batteries, find scientists.
- Russian scientists discover a new mineral in the volcanic area of Kamchatka in the country's far east.
- The mineral dubbed "petrovite" can be utilized to power sodium-ion batteries.
- Batteries based on salt would be cheaper to produce than lithium-ion batteries.
Excited Russian scientists at the edge of the volcanic area in Kamchatka where the mineral was found.
Credit: St. Petersburg University / Filatov
Crystal structure displaying sodium migration pathways.
Credit: Filatov et al., Mineralogical Magazine, 2020
Memrise's three-step approach is a game-changer for learning languages.
- The benefits of learning a new language include becoming a better problem-solver, increasing your memory capabilities, and sharpening your mind.
- You'll also gain a greater appreciation for the culture you're studying.
- Speaking another language is considered one of the top eight skills required in all occupations.
"Nothing but naked people: fat ones, thin ones, old, young…"
"The Yellow Sands", 1888, John Reinhard Weguelin; source: Wikimedia Commons<h3>Naked revolution</h3><p>Yet long before anyone knew about beach fashion, naturism was trendy. Bathing naked in the sea was going on in England as early as 1840. However, during the reign of Queen Victoria, this pleasure was outlawed. But it popped up again among the conservative Germans. In 1898, the first Naturist Club was founded in Essen and in 1900 the Wandering Birds group (<em>Wandervögel</em>) was scouring the country for uninhabited places and naked sunbathing. In the same year, Heinrich Pudor wrote <em>The C</em><em>ult of </em><em>the </em><em>Nud</em><em>e</em>, winning the hearts of contemporary supporters of naturism.</p><p>In the 1920s, on the back of this, members of the Movement for Natural Healing (<em>Naturheilbewegung</em>) organized naked sunbathing for the improvement of health. Persuaded by Pudor's theory of the healing properties of the sun and wind, which could be absorbed through the skin, they launched the naked revolution.</p><p>Pudor's book became the naturists' manifesto and soon after, not far from Hamburg, the Free Body Culture (<em>Freikörperkultur</em>, or FKK) movement was founded. This spread through other German centres and brought together thousands of people. The FKK still operates under the same name today.</p><p>The cult of the naked body even wrote itself into the ideology of fascist Germany, which advocated a pure, Aryan race. But in 1933, Hermann Göring issued an order that defined nudity as "the greatest threat to the German soul" and, with that, criminalized naturist organizations. But this wasn't the end of the movement. The naturists went underground, continuing their activities under the guise of improving physical fitness.</p><p>In 1936, the idea was even floated of having a naturist display to open the Berlin Olympic Games. It was quickly dropped. Despite this, in 1939 the naturists managed to organize their own Games in the Swiss village of Thielle.</p>
Virtual reality is more than a trick. It's a solution to big problems.
- According to projections shared by the UN, Earth's population is expected to reach 9.7 billion in 2050. By the year 2100, that number could increase to 11 billion. Virtual reality will be necessary to reduce the waste of such a large population in industries like transport, retail, and manufacturing.
- As an existing technology, there is a lot that virtual reality can do: rich and immersive environments, heightened storytelling, emotionally resonant experiences, and increased productivity in retail. But it's only in its infancy.
- As the world's population continues to grow, the technology will need to evolve to facilitate a larger network of users, and developers will have to think harder about the technological potential and the ethical, neurological, and emotional side effects.
The space tourism company Virgin Galactic teams up with Rolls Royce to create a new Mach 3 supersonic aircraft.
- Richard Branson's Virgin Galactic has announced a partnership with Rolls Royce.
- The space tourism company will create a new supersonic jet for super-fast travel on Earth.
- The aircraft will travel at Mach 3 – three times the speed of sound.
Credit: Virgin Galactic