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155: Reflecting telescope from the hand of Newton.
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153: Reflecting telescope from the hand of Newton.
152: 2020-12-24_17-40-57.jpeg
151: 2020-12-24_17-41-02.jpeg
150: Huygen's lens
149: Huygen's lens
148: Spending the afternoon at the royal society. They left me alone with the Leeuwenhoek letters. - Tim
147: 2020-12-24_17-41-25.jpeg
158: 2015-08-28_19-34-01.jpg
159: 2015-08-29_11-35-11.jpg
160: 2015-08-30_04-50-07.jpg
161: 2015-08-30_04-50-14.jpg
162: 2015-08-30_04-50-14_1.jpg
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166: 2015-09-14_11-22-00.jpg
167: 2015-09-29_16-19-58.jpg
