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Articles by H. Zell
Evidence has been found that surgical procedures using aconite poison as an anesthetic were performed in China 600 years ago.
May 26, 2026 14:25:00 The world's first chemical evidence of a local anesthetic has been discovered in surgical instruments found in a Ming Dynasty tomb in Jiangyin City, Jiangsu Province , in eastern China. This indicates that doctors in Ming Dynasty China possessed advanced medical skills that allowed them to use anesthesia.
La canne de Provence, un cousin du bambou à l’effet spectaculaire en plein incendie
Diffusé le mercredi 11 juin 2025 à 6:20 Publié le mercredi 11 juin 2025 à 6:20 Savez-vous pourquoi, lors d’un incendie en Provence, vous pourriez entendre des explosions ressemblant à des pétards ? C’est la canne de Provence, une herbe qui, à cause de l’air emprisonné dans sa tige, explose en cas de chaleur intense. Découvrez cette plante fascinante et son histoire.
Extraordinary extinct creatures we'll never see
James Draven 03 October 2026 The wildlife we’ve lost forever Over 99% of all species that have ever existed on our planet are now extinct. As we confront a growing number of species currently under threat, it's crucial to reflect on the incredible creatures we've already lost — some at the hands of humankind. From the colossal land mammals of the ancient past to the tiniest creatures lost to climate change, each entry reminds us of the urgency of conservation.
Кратка история на кастореума - секрет от дупето на бобър, използван като парфюм
Кастореумът е вещество, което се отделя от мъжките и женските бобри от Аляска, Канада и Сибир, от торбички, разположени близо до основата на опашките им (на латински кастореум означава бобър). Тези животни не виждат и не чуват много добре, но имат отлично обоняние – и благодарение на кастореалните си „жлези“ те самите също миришат чудесно.
When Planting for Pollinators, Don’t Forget Trees
The flowers of native perennials and annuals are excellent nectar sources for bees, hummingbirds and butterflies, but to really up the impact of your pollinator-friendly garden, plant a flowering tree. The amount of nectar and pollen potentially gleaned from a single tree may be equal to that of an entire field of wildflowers. Trees also provide shelter for native nesting bee species and carpenter bees.
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