Articles Tagged with astronomy

Old popular science

Published on March 24, 2026March 24, 2026 by fivecolorssandt@icloud.com

Cutting-edge of the past

Were popular science authors just better at it, years ago?

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Logic and common sense

Published on March 10, 2026March 9, 2026 by fivecolorssandt@icloud.com

Rejecting the experts

How do you reason?

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Sunrise, sunset

Published on January 27, 2026January 26, 2026 by fivecolorssandt@icloud.com

In-between calculations

In the twilight land of Spherical Astronomy. . .

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Expensive but worthless

Published on January 6, 2026January 4, 2026 by fivecolorssandt@icloud.com

The economics of obsolescence

Anyone want a high-end enlarger?

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Seeking agreement

Published on October 7, 2025October 6, 2025 by fivecolorssandt@icloud.com

Another step

We propose a modification of the Scientific Method.

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General knowledge

Published on August 5, 2025August 3, 2025 by fivecolorssandt@icloud.com

Challenge problems

We present some interdisciplinary questions from our tutoring consultant.

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What if. . .?

Published on July 8, 2025July 7, 2025 by fivecolorssandt@icloud.com

Counterfactuals

Asking about what might have been can be useful, but is often just a waste of time.

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The center of the universe

Published on July 1, 2025June 29, 2025 by fivecolorssandt@icloud.com

A privileged position

A discredited historical myth refuses to die.

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Small perturbations

Published on April 15, 2025April 14, 2025 by fivecolorssandt@icloud.com

A big subject

We describe how to do something that’s hard.

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Time is against us

Published on March 18, 2025March 16, 2025 by fivecolorssandt@icloud.com

Human scales

The universe is often an obstacle to science fiction.

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