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TARİHTE BUGÜN 20 Şubat

Yenicag 

Tarihin tozlu sayfalarını 20 Şubat’a çevirdiğinizde karşınıza ne çıkar? Belki yıkılan bir imparatorluğun son nefesi, belki dünyayı aydınlatan o ilk büyük buluş, belki de kaderi savaşlarla çizilmiş bir liderin ilk çığlığı...

Trump on Ocasio-Cortez's Munich response: 'I didn't know she was stupid'

TheHill.com 

President Trump on Thursday criticized Rep. Alexandria Ocasio-Cortez (D-N.Y.) again for her remarks at the Munich Security Conference last weekend. “Her performance was horrible. I was surprised actually, I didn’t know she was stupid,” he told reporters aboard Air Force One en route to Rome, Ga. The president specifically pointed to her foreign policy remarks...

Cheaper green hydrogen? New catalyst design cuts energy losses in AEM electrolyzers

Phys.org 

Producing clean hydrogen from water is often compared to storing renewable energy in chemical form, but improving the efficiency of that process remains a scientific challenge. Researchers at Tohoku University have now developed a catalyst design that helps hydrogen form more smoothly under alkaline conditions, a key step toward practical green hydrogen production.