All posts by Black-Rat

1800s, Railways, Transport, Tunnels

Tower Subway

A little way north of the Uber boat station by the Tower Of London you might notice a small cylindrical building called the Hydraulic Tower,

Today it carries a water main, hence the name, but its heritage is rather different.

Quite possibly you have used the nearby Tower Hill underground station which is not far from the site of the old Tower Of London station which opened in 1882 as a terminus for the Metropolitan Railway.

Even this, though, was not the first railway on Tower Hill.

In 1870 the Tower Subway, a 2’6” narrow gauge railway, was built from Tower Hill under the Thames to Vine Lane off Tooley Street by London Bridge station. There was a single carriage which was pulled by cables connected to a static steam engine at each end. It proved unreliable and a passenger died in an accident with the lift.

In 1871 the railway was taken up and it became a pedestrian tunnel with a toll of a halfpenny. It attracted a million transits each year. A bit of maths: 480 halfpennies to the pound, divide by 52, works out at £40 per week which was not a bad bit of bunce in the late 1800s – equivalent to £4,700 in 2020.

In 1898 it went out of business because of the free crossing afforded by Tower Bridge which opened in 1894. Today it carries a water main and phone lines. You can, however, see the original entrance.

The tunnel was bored by pioneer engineer James Greathead using an adaptation of Marc Brunel’s tunnelling shield as used to build the Wapping Tunnel.

The Tower Subway features on my Tower Hill tour.

DRAFTS

Aylmer Sande

Aylmer (Elmer in modern terms) was a bishop in Surrey in the 1400s. He lived just outside Croydon in an area now bearing a corrupted version of his name: “Elmers End”.

This very much a draft as he had a connection with St Olav’s in the City, more details to follow.

400s, Language, Tangential Topics

Old English

…or Anglo Saxon

Considered to have been spoken during the Old English period from 450-1150.

This is the earliest recorded period of English language, up until Middle English took over in 1150.

Mainly the language of Germanic immigrants (and invaders!) . The language was also referred to as Anglo-Saxon.

1600s, Architects, Astronomy, Churches, DRAFTS, Scientists

Christopher Wren

1632-1723

We all know Wren as an architect but at the age of just 25 he was appointed professor of astronomy at Gresham College.

He studied mathematics, mechanics, medicine, meteorology and microscopy. He was a member of parliament who served three terms in the House of Commons and, despite being born a sickly child in the 1600s lived to the age of 90.

It is, however, as an architect that we best know him. in 1669, three years after the Great Fire, King Charles II appointed him Surveyor of Works and charged him with rebuilding the City.

Rebuild it, he did. Aside from other buildings, he rebuilt 52 City of London churches including St Paul’s cathedral.

He was assisted by architect and polymath Robert Hooke and worked alongside architect Nicholas Hawksmoor.

He laid the groundwork for the formation of the Royal Society of which he was later president.

1600s, Creatures, Health and disease, Plague

Great Plague

The Great Plague started in May 1665 and it was nasty stuff – worse than Man Flu. It’s reckoned that it killed 75,000 Londoners

A little biology lesson! If you see a rat in London today then it is a Brown rat.

Back in the 1600s, however, the resident rat was the Black Rat and it was believed for some time that these carried the Bubonic plague which was then passed to people by fleas.

This has proved not to be the case and the disease was actually passed from human to human by fleas and lice.

Not the first plague epidemic in London, that being the Black Death in 1348/49. Last recorded case in UK was in 1679. The last recorded case in China though, was in 2019 – but 2022 in the USA.

Want to know more? Come on either my Billingsgate or City Essentials walk.

1600s, Astronomy, DRAFTS, Scientists

Robert Hooke

1635-1703.

Hooke was a scientist engaged in a number of disciplines. He formulated Hooke’s Law relating to elastic properties of materials.

Hooke became curator of experiments for the Royal Society in 1662.

Three years later, in 1665, he was appointed Professor of Geometry at Gresham College.

Hooke was a pioneer in the development of the microscope and also wrote papers on gravity which are respected to this day.

As an architect he was chief assistant to Christopher Wren when rebuilding the City of London after the Great Fire of 1666.

Like Wren, Hooke was an astronomer and determined to prove that the earth rotated around the sun. This led to a failed experiment involving the star Gamma Draconis.

1500s, Education

Gresham College

This was effectively the first university in the City of London. Funded by a bequest from financier Thomas Gresham it was built in Bishopsgate in 1571. It stood near where Tower 42 aka the Natwest Building now stands.

It was a place, of course, of education but also of research. The Royal Society first met here in 1660 with Christopher Wren and Robert Hooke in attendance.

The college still operates today. It does not accept students nor issue degrees but offers around 140 free lectures each year.

Today it is located in the west of the City on Holborn at Barnard’s Inn Hall.

1600s, Astronomy, Tangential Topics

Gamma Draconis

Many of you will know the tower called The Monument. You may not know that its design was inspired by an object 150 light years away.

The Monument commemorated the Great Fire of 1666 and was built by Christopher Wren. The architect, however, was not Wren but his assistant Robert Hooke who had a particular plan for the building.

Like Wren he was also an astronomer. At this time some scientists still believed that the sun rotated around the earth. Hooke was determined to prove that the opposite was true.

A star called Gamma Draconis passes over the City every night and Hooke reasoned that by taking observations of the star at different times of the year he could prove that the earth went around the sun.

To do this he needed a telescope around 200’ long and, obviously somewhere to put it. The tower, therefore, was also an observatory.

Hooke’s astronomy was perfect, his calculations were flawless, the telescope was built with absolute precision and positioned perfectly within the building.

He had, however, failed to take two factors into consideration. His observations could involve fractions of a millimetre but every time a vehicle rolled down nearby Fish Street Hill, the tower vibrated slightly and upset his readings. Also, surprisingly for an architect, he’d failed to consider that a 200’ tall building would sway in the wind!

PARALLAX

How would Hooke’s experiment have worked? He was using something called parallax.

Here’s an example. Stand at the end of a room and choose something, say a picture, on the opposite wall. Take 3 paces left and you’ll be looking at the picture from a certain angle. Take 6 paces right and the angle changes. This is parallex.

He theorised that if the earth went around the sun then in, say, June it would be one side of the sun and in December on the other. and there would be quite a long way between the two.

If he took observations of Gamma Draconis in June and then again in December and the star was shown to be at a different angle (albeit a tiny one) then this would prove that the earth was indeed circling the sun.