据伯奇博士说，一旦这些激光器被断开后，用这种方式记录下来的数据能稳定地保留12 年以上。
Once the lasers are switched off, data recorded this way will, according to Dr Birge, remain stable for more than 12 years.
据类人猿的大脑尺寸及其社交网络推断，邓巴博士认为人类大脑的尺寸约能容许维持148人的稳定人际关系网。
Extrapolating from the brain sizes and social networks of apes, Dr Dunbar suggested that the size of the human brain allows stable networks of about 148.
“材料要坚韧稳定，但从通电的角度看也需要让电离子顺利通过，”格林浩尔博士说。
"You want it very rigid and stiff, but from an electrical point of view you also want it to allow ions to flow through the material," says Dr Greenhalgh.
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