Terence Eden. He has a beard and is smiling.

Terence Eden’s Blog

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200 Years Ago - A Prediction of a Deadly Comet Impact

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Screenshot of an old newspaper. COMETS. It is now certain that the same comet has appeared in our planetary system in the years 1786, 1795, 1801, 1805, 1818, and 1825. It appears that in its course it never passes the orbit of Jupiter. The period of its revolution ( which is the shortest known) very little exceeds three years and a quarter ; and its mean distance from the sun is not more than twice that of the earth. It seems to be especially connected with the system in which our globe is placed, and crosses our orbit more than sixty times in a century. M. Olbers, the celebrated astronomer of Bremen, who has bestowed much attention on this comet, has been lately occupied in calculating the the possibility of its influence on the destinies of our globe. He finds that in 83,000 years this comet will approach the earth as nearly as the moon; and that in 4,000,000 of years it will come to within a distance of 7700 geographical miles; the consequence of which will be ( if its attraction be equal to that of the earth) the elevation of the waters of the ocean13,000 feet; that is to say, above the tops of all the European mountains, except Mont- Blanc. The inhabitants of the Andes and of the Kimlaya mountains alone will escape this second deluge ; but they will not benefit by their good fortune more than 210,000,000 years, for it is probable that, at the expiration of that time, our globe, standing right in the way of the comet, will receive a shock severe enough to insure its utter. destruction.— This is very alarming !

While digging though some old journals in a fruitless side-quest, I came across this delightful description of what I think is the Comet Encke. It is quite an astonishing prediction, and the last line is perfection. In 1926, several journals and almanacs syndicated a column discussing this comet. The above is from The New Jerusalem magazine and theological inspector which has added "This is…

Book Review: The Battle of the Beams by Tom Whipple

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Book cover featuring radio waves and fighter planes.

Well this is a treat! It is rare to find a pop-science book which does such a good job of actually explaining the science, rather than just using it as a background for storytelling. The Battle of Beams doesn't go too deep into the mechanics and physics, but gives a general overview with just enough detail to keep things interesting. It is also well illustrated (not a given in these sorts of…

Book Review: The Anarchy - The Relentless Rise of the East India Company by William Dalrymple

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Book cover for The Anarchy. An illustration of four Indian soldiers in European dress.

This is a marvellous and depressing book. Marvellous because it finely details the history, atrocities, and geopolitical strife of unfettered capitalism. Depressing for much the same reason. Dalrymple takes the thousand different strands of the story and weaves them into a (mostly) comprehensible narrative. With this many moving parts, it is easy to get confused between the various people,…

Books will soon be obsolete in school

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A wall spanning bookshelf with giant books.

I recently had a chance to ask a question to one of the top AI people. At a Q&A session, I raised my hand and asked simply "What is your estimation of the future educational value of AI?" The response was swift and utterly devastating for those laggards who want to hold back progress. The AI guy said: Books will soon be obsolete in schools. Scholars will be instructed through AI. It is possible …

Book Review: Beyond Measure - The Hidden History of Measurement by James Vincent

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Book cover.

This is a charming travelogue through the confusing and contradictory world of measurement. It has a similar thesis to Seeing Like A State by James C. Scott and is infinitely easier to read than Inventing Temperature by Hasok Chang Emanuele Lugli has noted, units of measurement are, for the powerful, ‘sly tools of subjugation’. Each time they’re deployed, they turn the world ‘into a place that …

Book Review: A History of the World in 47 Borders - The Stories Behind the Lines on Our Maps by Jonn Elledge

· 2 comments · 200 words · Viewed ~247 times


Book cover with a map on it.

Jonn Elledge has a witty and friendly tone. It skirts just the right line between trivia nerd and your favourite history teacher. He cheerfully points out the absurdities in history and swiftly pivots into the injustices of "Cartographic Colonialism". There are delightfully diverting asides and then we're brought right back into the horrors of a straight line. The problem with history is that…

Book Review: The Wicked of the Earth by A. D. Bergin

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Book cover with a city in the background.

My friend Andrew has written a cracking novel. The English Civil Wars have left a fragile and changing world. The scarred and weary inhabitants of Newcastle Upon Tyne enlist a Scottish "Pricker" to rid themselves of the witches who shamelessly defy god. Many are accused, and many hang despite their protestations. The town settles into an uneasy peace. And then, from London, rides a man…

Book Review: Myself When Young (1938)

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My sex must have been a disappointment to my parents, as they already had three daughters and only one son, but their disappointment was probably not so great as my own, for I longed to be a boy, and, while staying with my uncle, Sir Walter Farquhar, at Polesdem Lacey, my delight was to wear my cousin's clothes, to climb trees, chase pigs, ride barebacked ponies and play cricket with the stablebovs.

I'm not a paper fetishist. The smell of old books does nothing for me. But I'll admit to a slight sense of wonder when I held this 86-year old book in my hands. What is feminism? This is an out of print, and somewhat obscure, attempt to answer that question. Out of the shadow of the Great War and barely a decade after universal suffrage in the UK, one woman decided to catalogue the…

Book Review: Fallen Idols - Alex von Tunzelmann

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Book cover showing the disembodied head of Lenin's statue lying on its side.

"History is not erased when statues are pulled down. It is made." Some people celebrated when Saddam's statue was toppled in Iraq. Yet those same voices condemn the felling of Coulson, Rhodes, and a dozen other statues. Why? Alex von Tunzelmann has a knack for getting to the heart of history in an accessible manner. There isn't a hefty amount of ponderous academic theory to wade through - just…

Using date-based CSS to make old web pages *look* old

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Screenshot of an early BBC news website from the 1990s. The page looks old fashioned.

How do you know you're looking at an old website? You may have found a page which has lots of interesting information, but how can you tell it's a modern and relevant result? Some websites don't contain dates in their URls. There may not be a © date or publication date shown on the page. And the <meta> tags might not contain anything useful. If you're lucky, the site will look old fashioned: …

Who said "Brits think 100 miles is a long distance - Americans think 100 years is a long time"?

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Unfortunately or fortunately, this situation will prevail for some time to come, because the United States, as a nation, is going through a delayed adolescence, and we are questioning everything. We are a very new country, even if we are an old democracy, and we don't have it all down yet. As my friend Simon, an Englishman, says, "The British think a hundred miles is a long way; Americans think a hundred years is a long time."

It's one of those pithy little quotes which reveals so much about our two cultures. The average Briton considers anything more than a 45 minute trip a bit of a schelp, whereas Americans will seemingly drive half a day just to get some ribs from that one place they like. Conversely, I went to school opposite a church which pre-dated Columbus's invasion of North America - and I doubt that was the…

Bryan Adams lied to you

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A white plastic desktop phone with QWERTY keyboard and a video screen.

I'm always interested in when anachronistic technology pops up in the media. Whether it's Kelly Rowland trying to send an email using Excel, or people in spaceships developing film photographs, or futuristic moonbases which use BS 1363 plugs - I just love it! So, I was watching that absolute banger of a tune "When You're Gone" by Bryan Adams (featuring Mel C) - when I noticed this: It appears …