Round numbers Published on February 28, 2023February 27, 2023 by fivecolorssandt@icloud.com An even ten-thousand We note an almost unknown milestone. Read More
A voyage to Uranus Published on May 3, 2022May 2, 2022 by fivecolorssandt@icloud.com Space is big It takes a long time to get to the outer planets. Read More
Planned and unplanned Published on March 19, 2019March 17, 2019 by fivecolorssandt@icloud.com Careful forethought vs. serendipity Equivocal insights from photography. Read More
Numbering the stars (II) Published on March 5, 2019March 3, 2019 by fivecolorssandt@icloud.com The observable universe One word is the difference between calculation and infinity. Read More
Numbering the stars (I) Published on February 26, 2019February 25, 2019 by fivecolorssandt@icloud.com Big numbers We look at answers to an obvious question. Read More
It doesn’t look right Published on November 13, 2018November 13, 2018 by fivecolorssandt@icloud.com Finding mistakes Our tutor ponders techniques he employs unconsciously. Read More
Divisable numbers Published on September 25, 2018September 24, 2018 by fivecolorssandt@icloud.com How many whats in a which? In actual use, the decimal system is not always the best. Read More
A village in space Published on July 10, 2018July 10, 2018 by fivecolorssandt@icloud.com Interstellar genetics A recent paper contemplates a very long voyage. Read More
A cup of suns Published on June 12, 2018June 8, 2018 by fivecolorssandt@icloud.com The fixed stars, part III Seeing the forest instead of the trees Read More
Telling time Published on December 26, 2017December 24, 2017 by fivecolorssandt@icloud.com Waiting for the kalends How you tell time tells something about you. Read More
