The investment in the Valencia Shipyard was only 25 million Pessetas, which for Carlo was just a small test of his skills.

Next, Carlo mobilized a large amount of funds to invest in and support Spain’s relatively weak heavy industries, such as metallurgy, machinery manufacturing, chemicals, and materials.

In these five major areas, each received an average investment of more than 20 million Pessetas, with a cumulative investment exceeding 100 million Pessetas, marking his substantial commitment. 𝒇𝓻𝓮𝓮𝙬𝙚𝒃𝒏𝓸𝙫𝒆𝙡.𝓬𝓸𝒎

Even with an investment of over 100 million Pessetas, it was still impossible to rapidly advance these industries in a short period. What could be achieved was effectively promoting industry upgrades, which would take a long time to yield certain results.

At least with more than 100 million Pessetas from the Royal Family’s support, private enterprises in these industries could continue to survive and have ample funds for technical improvements.

Aside from directly supporting enterprises in these industries, the Royal Family’s other option was to vigorously cultivate outstanding talent in these areas, continuously injecting new blood into these industries.

To this end, Carlo personally instructed the education department, requesting their assistance in the construction and reform of specific universities.

Several universities have now, under the education department’s orders, established new majors and subjects related to heavy industries, effectively supplementing Spain’s talent cultivation system in these fields.

Building a complete talent cultivation system is absolutely the most effective way to promote an industry. Talent is the most important factor for any industry, more so than ready-made technology and equipment.

After all, only with sufficient talent and a complete talent cultivation system can an industry’s technology continually progress.

If there is a lack of talent, even if temporary leadership is achieved, future progress will still be stalled due to the loss of outstanding talent.

Besides these heavy industries, in the field of electricity, after many years, the Electricity Laboratory finally made some achievements.

To be precise, since the completion of the Electricity Laboratory, more than five years had passed. During these five years, the laboratory built a direct current generator and an alternating current generator, and under Carlo’s guidance, discovered the electric motor.

That’s not all; Graham continuously explored wider applications of electricity and delved deeply into the research of the light bulb.

Before the invention of the light bulb, people’s main means of illumination relied on flames and kerosene lamps. Kerosene was also one of the primary uses of petroleum at that time.

These two methods of illumination had significant drawbacks. Using flame for lighting required no further explanation - it wasted various forms of fuel and the firelight was not that bright.

Although kerosene lamps only needed kerosene as fuel, their brightness was also not high, just enough to barely see things clearly.

It was precisely because of these reasons that prompted the birth of the light bulb. Even the most primitive light bulb was by no means inferior to kerosene lamps in terms of brightness.

If not for the limitations on lifespan and power development, light bulbs could easily have quickly replaced kerosene lamps and become the main source of daily lighting.

Before Graham’s major investment into light bulb research, the exploration of light bulbs was still in a large exploratory stage.

When people in later generations thought of the light bulb, the most easily remembered name was Edison. But in reality, the earliest inventor of the light bulb was the United States scientist Henry Goebel. He used carbonized bamboo filament in a glass bulb, achieving more than 400 hours of illumination.

However, because Henry Goebel did not apply for a patent in time, he ultimately did not achieve the fame in light bulb invention that the "King of Invention," Edison, did.

Edison was certainly a capable scientist, but he was also an extremely skilled capitalist. At least Edison’s reputation was not entirely due to his own inventions, as a considerable number of inventions were patented after being bought and then named by Edison himself.

Carlo had some understanding of this development history of the light bulb. Edison’s light bulb patent was purchased from Canadian scientists, with the sale driven by their inability to continue research on the light bulb.

In essence, scientific research requires substantial funds for development. The birth of the light bulb was the result of repeated experiments with various materials by relevant scientists, eventually leading to its creation.

Carlo knew that before the invention of the tungsten filament bulb, the longest-lasting and most effective bulb was the carbon filament bulb.

So Graham’s light bulb research initially targeted the carbon filament bulb, exploring a bulb that could be used commercially for several hundred hours.

After five years of exploration and experimentation, finally, Graham brought good news to Carlo: the Electricity Laboratory successfully manufactured a carbon filament bulb with an average lifespan of 300 hours.

Upon hearing this news, Carlo happily went straight to the Electricity Laboratory to see for himself.

When Carlo arrived at the Electricity Laboratory, Graham had already prepared the relevant light bulb experiments, ready for Carlo’s personal viewing and testing.

"Your Majesty, you are currently viewing the entire experimental process of our carbon filament light bulb.

Our initial experimental subject was carbonized cotton thread, with a bulb lifespan of up to 40 hours. However, this lifespan was clearly insufficient for commercial use, so on that basis, we tested carbonized bamboo filament and card paper, eventually achieving the current bulb with an average lifespan of over 300 hours available for commercial use." Graham excitedly introduced the experiment process of the light bulb filament to Carlo, the excitement and admiration in his eyes almost overflowing.