It was discovered by Heike Kamerlingh Onnes on April 8, 1911 in Leiden.
It was discovered by Heike Kamerlingh Onnes on April 8, 1911 in Leiden.
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It was discovered by Heike Kamerlingh Onnes on April 8, 1911 in Leiden.
It was discovered by Heike Kamerlingh Onnes on April 8, 1911 in Leiden.
0.003 seconds.