Category Archives: Science

Rainbows

Bible, OUR BEST POSTS, Science, The Way of Peace, Thursday posts

(Originally published 2013-07-04 at Trojan Horse Productions; reblogged 2014-08-27.)

Baltimore is more likely than other places, to have weather when you can see rainbows. We are coming now into a period when this is especially so. We will probably have another such time again in September.

The key to seeing rainbows is, three things have to happen at the same time:
(1) The sun is shining
(2) while it rains, and
(3) there is blue sky somewhere.
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“Francis” and the phonograph

Get on your feet, Motivations, OUR BEST POSTS, Science, Thursday posts, , , ,

Today is my youngest brother’s 65th birthday, and a good occasion for me to pay tribute to him as an inspiration and role model.

He’s six years my senior.  We have two other brothers, one 7½ and one 9 years my senior.

Let’s see if I can compose this before my Net access runs out for today, 45 minutes from now.

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x Prayer primer

Bible, Science, Thursday posts, , , , , , , , ,

nanocrystals2 edited
All my life, I’ve been fascinated with things that glow in the dark.  Where does the light come from?  This is now fundamental to my understanding of prayer, and of my vocation.

The picture shows what I take for the latest advance in the world of fluorescent materials.  Here are germanium nanoparticles in a colorless colloidal (gelatinous) suspension, being irradiated by ultraviolet light.  By virtue merely of where they are and what they are, the invisible light that shines on these particles is changed into visible light.

The nanoparticles catalyze that process:  they do no work of their own, expend no energies of their own, and take no active part in the process; but it won’t occur without them.
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