Donald Trump tapped Emil Michael (at right) in December 2024 to become undersecretary of defense for research and engineering.WIN MCNAMEE—Getty Images
公式： f(x)=x⋅Φ(x)≈0.5x(1+tanh[2/π(x+0.044715x3)])
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Corinna Gardner, senior curator of design and digital at the V&A, said the snapshot of YouTube's early days marked an "important moment in the history of the internet and digital design".