Percy Ludgate: The Forgotten Irish Inventor Who Designed One of the World’s First Mechanical Computers

Percy Ludgate: The Forgotten Irish Inventor Who Designed One of the World’s First Mechanical Computers

We recently found out about Charles Babbage, the Victorian mathematician who designed the Difference Engine and the Analytical Engine, laying the foundations for the modern computer. Today, I want to find out a little bit about another pioneer of computing whose name is less well known. That is Percy Edwin Ludgate.

Ludgate was born on the 2nd of August 1883 in Skibbereen, County Cork, Ireland. Unlike Babbage, he was not a wealthy inventor or university professor. He worked as a clerk and later as an accountant in Dublin. He spent his evenings and nights pursuing his fascination with mathematics and mechanical calculating machines.

In 1909, Ludgate published his design for an analytical engine. He appears to have developed many of his ideas independently before learning about Babbage’s earlier work. Although both men were trying to solve the same problem, Ludgate’s machine was completely different in its design.

His analytical engine was intended to store 192 numbers, each containing 20 digits. Instead of relying mainly on addition like Babbage’s design, it actually used multiplication as its primary method of calculation. It also introduced several original ideas, including an advanced multiplier-accumulator, an innovative mechanical memory system and new methods for controlling calculations. These ideas were extraordinarily advanced for someone who was working alone in his spare time.

Sadly, Ludgate’s machine was never built. Although he wrote that complete engineering drawings and a detailed manuscript existed, they have never been found. As a result, historians still cannot fully reconstruct exactly how every part of his remarkable design would have worked.

Percy Ludgate sadly died from pneumonia in 1922, at the age of only 39. Although he remained largely forgotten for many years, he is now recognised as one of the true pioneers of computing. His work proved that revolutionary ideas about programmable mechanical computers did not begin and end with Charles Babbage.

Had you heard of Percy Ludgate before, or do you think he deserves far greater recognition for his contribution to computing history?

Clara Kramer Part 5: How Did Clara Kramer and Her Family Escape from the Żółkiew Ghetto?

Clara Kramer Part 5: How Did Clara Kramer and Her Family Escape from the Żółkiew Ghetto?

Today I want to find out a little about how Clara Kramer, her family and several others managed to escape from the Żółkiew Ghetto.

Warsaw Ghetto Uprising

By late 1942, it had become exceedingly clear that remaining in the ghetto would mean almost certain death. Thousands of Jewish men, women and children had already been deported to the Bełżec extermination camp, while others were murdered during round-ups. Clara's family realised that they could no longer wait. They had to find another way to survive.

Their hope came from an unlikely source. Valentin Beck, he was a Volksdeutsche (an ethnic German living in occupied Poland), he agreed to help them. Helping Jewish people could have cost him his own life, but he still chose to help them. Exactly what motivated him we don’t know, but survivor accounts do suggest that it was compassion and personal connections that influenced him.

Not the hiding place just a representation

A secret hiding place was underneath the Beck family's house. The bunker was originally dug under the house of Mechel Melman before Beck took possession of it. They were hidden under the floor and they reached the space through a concealed trapdoor. The underground shelter was small, dark and very cramped. There was barely enough room for the people who would eventually hide there. Once they went inside, they knew they might not come out again until the war ended.

Leaving the ghetto was probably one of the most dangerous moments that they faced. They escaped during the final liquidation of the Żółkiew Ghetto in 1943, when there was chaos and mass round-ups taking place. They left secretly, under cover of darkness, rather than through an official gate or with permission.

Somehow, Clara, her parents and the others managed to reach the Beck house and climbed down into the underground hiding place.

It was the beginning of a terrifying new chapter of their lives. Although they had escaped the ghetto, they were about to spend almost twenty months living under the floor in silence, darkness and in constant fear.

Tomorrow, I want to tell you what life was like inside the underground hiding place and how eighteen people managed to survive in such an unbelievably small space.

Norwich Cathedral Part 5: The Norman Interior That Has Stood Almost Unchanged for Over 900 Years

Norwich Cathedral Part 5: The Norman Interior That Has Stood Almost Unchanged for Over 900 Years

Today I want to take a look inside Norwich Cathedral to discover what remains of its original Norman interior. Although parts of the cathedral have obviously changed over the centuries, many of the features that visitors still see today would have been recognisable by the people who worshipped there 900 years ago.

The cathedral was built in the Romanesque, or Norman, style. This was designed to make visitors be awe-inspired. The massive stone pillars, huge rounded arches and thick walls created a powerful impression of strength. Unlike the bright Gothic cathedrals that came later, the Norman interior was more solid and imposing.

Originally, many of the walls and ceilings would have been brightly painted in rich colours rather than the plain stone that we see today. Candles would have filled the cathedral creating an atmospheric warm glow. The sound of chanting would have echoed through the vast building. The monks chanted because it was a central part of Benedictine worship. Chanting wasn't just music- it was considered a form of prayer. The Benedictine monks gathered several times a day to sing Gregorian chant which was an unaccompanied style of sacred music sung in Latin. It would have created an unforgettable experience for any medieval worshipper.

Unlike today, there would have been very little seating for ordinary worshippers inside the cathedral. Most people would have stood or knelt during services. The Benedictine monks sat in wooden choir stalls on either side of the choir as they chanted their daily prayers. The bishop had his own special seat, known as the cathedra, which gave the cathedral its name. The rows of wooden pews that many people associate with churches today were added much later, so the cathedral’s vast open spaces would have looked very different to medieval visitors.

The organ that visitors see today would not have been part of the original Norman interior. In the cathedral’s early years, worship was centred on the voices of the Benedictine monks rather than large musical instruments. Organs were introduced later and gradually became a more important part of cathedral worship over the centuries. There are references to an organ from the 14th century at Norwich Cathedral.

One of the most impressive surviving features is the cathedral’s enormous stone pillars and arches. These have supported the building for more than nine centuries and they remain among the finest examples of Norman architecture in Europe.

Standing inside Norwich Cathedral today is so incredible and a wonderful connection to generations of monks, pilgrims and ordinary people who have walked through the same spaces for almost 900 years.

Have you ever visited the Norman interior of Norwich Cathedral, and what impressed you the most?

Clara Kramer Part 4: What was Life Like Inside the Żółkiew Ghetto?

Clara Kramer Part 4: What was Life Like Inside the Żółkiew Ghetto?

Today I want to find out a little about what happened after Clara Kramer and her family were forced into the Żółkiew Ghetto.

In late 1941, after the German occupation of Żółkiew, the authorities ordered the town's Jewish population into a sealed ghetto. Families were given very little time to pack and often only had what they could carry. German police and soldiers, with the help of the Ukrainian Auxiliary Police, enforced the order.

Anyone who did not comply, hid, or failed to move faced being arrested, beaten, being shot, or being deported. Clara was only 14 years old when she, her parents and other members of her family were forced to leave their home and move into the overcrowded accommodation inside the ghetto. Families usually had to share the same buildings, they had very little space or privacy. The ghetto was heavily guarded by the Germans, and the Ukrainian Auxiliary Police also helped. Residents were forbidden from leaving the ghetto without getting German permission. Although a few people did risk their lives by secretly slipping out to try and find food or were taken out under guard for forced labour, most were effectively trapped there. Anyone caught trying to escape faced severe punishment or even death.

Life inside the ghetto was awful. Food was scarce, and many people survived on tiny rations. At first, some of the families managed by spending their savings or selling the last of their few possessions. Others depended on food and medicines that were secretly smuggled into the ghetto by local people or by Jewish residents who risked a lot to try and help. Family members sent out under guard for forced labour sometimes managed to bring back small amounts of food. Even then, it was rarely enough. Clean water and medical care were also limited, overcrowded and unsanitary conditions created the perfect conditions for diseases like as typhus to spread quickly. Every day was a battle to stay alive.

During 1942, regular deportations started, thousands of Jewish men, women and children were forced onto trains headed to the Belzec extermination camp. Many were told they were being "resettled", but very few ever returned. Families were torn apart, never knowing if they would see one another again.

For the people left behind the fear must have been overwhelming. Round-ups happened without warning. Friends, neighbours and relatives disappeared overnight, and it became clear that no one was safe. Clara went on to describe in her diary the terror and desperate hope that somehow her family might survive.

Clara Kramer's diary and survivor

 testimonies from other people who lived in the Żółkiew Ghetto, help us to understand what life was really like. They show us not just the suffering, but they also show the courage and determination of the people who tried to support one another despite the circumstances.Families were given very little time to pack, often only what they could carry. German police and soldiers, assisted by the Ukrainian Auxiliary Police, enforced the order.

Anyone who refused, hid, or failed to move faced arrest, beatings, being shot, or deportation.

Tomorrow, I want to tell you about how Clara and her family decided to go into hiding under a neighbour's house, hoping of surviving the war.

Elizabeth I Part 3: How Did Elizabeth I Try to Unite a Religiously Divided England?

Elizabeth I Part 3: How Did Elizabeth I Try to Unite a Religiously Divided England?

Today I want to find out how Elizabeth I tried to deal with one of the biggest challenges that she faced as Queen. England had experienced decades of religious upheaval. Many people were still deeply divided over whether the country should be Protestant or Roman Catholic.

Elizabeth came to the throne in 1558 after the reign of her half-sister, Mary I. Mary had restored Roman Catholicism. Before that, her brother, Edward VI, had introduced Protestant reforms, and their father, Henry VIII, well... he had broken away from the authority of the Pope and made himself head of the Church of England. Years of changes had left England clearly divided.

In 1559, Elizabeth introduced what became known as the Religious Settlement. It was a series of laws that were designed to create a national Church that most of her subjects could accept. It also strengthened her authority as Queen.

The Religious Settlement was planned by Elizabeth I and her chief adviser, William Cecil. They Once Elizabeth had approved the proposals, Parliament passed them into law in 1559 through the Act of Supremacy and the Act of Uniformity, establishing the Church of England under Elizabeth's leadership.

The Act of Supremacy made Elizabeth the Supreme Governor of the Church of England. She chose the title "Supreme Governor" instead of "Supreme Head", as some people believed only Christ could be the Head of the Church, and others objected to a woman holding that title. It was a clever compromise to try and appease both factions.

The Act of Uniformity required churches to use an updated Book of Common Prayer. People were expected to attend Church of England services each Sunday. Anyone who didn’t attend without a good reason could be fined.

Elizabeth's Church became known as a middle way. It was Protestant in its beliefs, had services held in English, but it also kept some of the traditional features. This included bishops, church music and certain ceremonies. Elizabeth hoped this compromise would be acceptable to as many people as possible.

But, the Religious Settlement did not end religious conflict. Some Roman Catholics refused to accept Elizabeth as head of the Church, they still believed that the Pope was head. Some Protestants believed her reforms did not go far enough. This caused friction. Throughout her reign, Elizabeth faced religious plots, opposition and continued tension.

Even so, the Religious Settlement brought greater stability than England had experienced for many years and it laid the foundations of the Church of England that still exists today.

Do you think that Elizabeth's compromise was the best way to try and keep England united, or was religious conflict impossible to avoid?

Clara Kramer Part 3: How Clara's World Changed After the War Began

Clara Kramer Part 3: How Clara's World Changed After the War Began

Today I want to find out how Clara Kramer's childhood came to an end after the Second World War started.

On the 1st of September 1939, Germany invaded Poland. Within only weeks, under the terms of the Molotov-Ribbentrop Pact, eastern Poland, including Żółkiew, came under Soviet control. For nearly two years, Clara lived under Soviet occupation. The reason for the pact was that two countries had temporarily agreed not to attack each another. They both had their own reasons for avoiding war with each other.

Germany wanted to invade Poland without risking a war on two fronts. In the First World War, Germany had been forced to fight both east and west at the same time, and Hitler wanted to avoid that mistake. The agreement ensured the Soviet Union would keep out of the invasion of western Poland.

The Soviet Union wanted more time to strengthen its military after years of purges and it also wanted to regain territories it had lost after the Polish–Soviet War (1919–1921). The agreement gave it the opportunity to occupy eastern Poland and create a buffer zone between itself and Germany.

But neither side trusted the other. The pact was a temporary arrangement based on mutual convenience, not friendship. That became clear in June 1941, when Germany broke the agreement by invading the Soviet Union.

Life under the Soviets was very different. Many businesses and private property were taken over by the state, political organisations were closed down and some local people were arrested or deported. Although life became worse, Jewish families were not singled out simply because they were Jewish in the way they would be later.

Everything changed in June 1941 when German forces invaded the Soviet Union and occupied Żółkiew. Almost immediately, Jewish families had to face harsh restrictions and ever growing persecution. They were ordered to register with the authorities, wear the Star of David, and many had their homes, businesses and possessions taken away. They were also banned from a lot of public places and faced strict curfews. They were essentially cut off from much of normal life.

Many Jewish men and women, including teenagers, were forced into hard labour. They were made to do things like repair roads, clean buildings, dig ditches. This was often with very little food or protection. Beatings, humiliation and random acts of violence were common, and families lived in constant fear.

These events are well documented through surviving German occupation records, wartime photographs, eyewitness testimonies and the diary that Clara herself kept after the war. Her memoir, Clara's War, also recalls how quickly life disappeared and how fear gradually became part of her existence.

For Clara and her family, the life they had known before the war was gone forever. Tragically even darker days were still to come.

Image info;

Zolkiee Synagogue

Charles Babbage: The Victorian Visionary Who Imagined the Computer

Charles Babbage: The Victorian Visionary Who Imagined the Computer

Today I want to tell you a little bit about Charles Babbage. He was an extraordinary Victorian inventor whose ideas helped to lay the foundations for the modern computer more than a century before one was ever built.

He was born in London on the 26th of December 1791. He showed a remarkable ability in mathematics and later studied at Trinity College before transferring to Peterhouse in Cambridge. He got frustrated by the errors that he found in mathematical tables, so he began to search for a way to make calculations more accurate.

In 1822, Babbage designed the Difference Engine, which was a mechanical machine that was intended to calculate and print mathematical tables automatically. The British Government actually funded the project. However, engineering challenges, rising costs and disagreements with his chief engineer meant that it was sadly never completed during his lifetime.

Rather than just abandoning his work, Babbage went on to develop an even more ambitious design which was known as the Analytical Engine. Unlike the Difference Engine, it was intended to follow instructions using punched cards, store information and carry out different calculations. Many of the principles behind it, including a form of memory and a processing unit, are still found in modern computers today.

One of Babbage’s closest collaborators was the mathematician Ada Lovelace. She recognised that the Analytical Engine could do much more than solve mathematical problems and wrote detailed instructions for how it could carry out a complex calculation. Because of this, she is often regarded as the world’s first computer programmer. She really was a remarkable women.

Babbage’s interests extended beyond computing. He also wrote about manufacturing, helped establish the Royal Astronomical Society, campaigned for improvements in science and even designed inventions for the railway, including an early form of the cowcatcher that fitted to the front of locomotives. He also worked on cryptography, postal reform and scientific measurement.

Although neither of his great calculating machines was completed during his lifetime, later engineers proved that his designs were sound. In 1991, London’s Science Museum successfully built a working Difference Engine from Babbage’s original plans using techniques that would have been available in the nineteenth century.

Charles Babbage died in London on the 18th of October 1871, at the age of seventy-nine. Today he is remembered as one of the greatest inventors of the Victorian era. His vision showed that machines could perform complex calculations automatically.

Had he lived to see today’s computers, smartphones and artificial intelligence, what do you think he would have thought?