"Squeak!"

The carriage stopped at the gate of the house, and Henry jumped out of the carriage quickly, opened the door and said respectfully, "Mr. Huntelaar, we are home." ”

"Oh?"

Opening his eyes, Huntelaar took a deep breath, reinvigorated his tired spirit a little, and then carefully stepped out of the carriage, waved his hand, and said, "Henry, tomorrow is Saturday, but I plan to rest for a day, so you don't have to get up early to prepare." ”

"Yes, sir!"

Henry's young face instantly flushed with joy, and he immediately answered loudly.

In this era, New York was basically a six-day workday, and a small number of middle-class people only had five and a half days, but the old Mr. Huntelaar was a very hardworking man, and rarely took a Saturday off, so it was quite a rare benefit for him to be able to take an extra day off this week.

"Sir, you're back."

As soon as old Huntelaar entered the door, Hans the butler greeted him.

"Hmm."

Handing Hans the cane and hat, old Huntelaar looked in the direction of the living room, frowned, and asked, "What about John?" Still tinkering with those things upstairs? ”

"Yes, sir."

Carefully taking the cane and hat, Hans didn't say much.

A full week had passed since he returned to Manhattan from New Jersey, and as Huntelaar Sr. had said, he had given John enough money and had Hans pack up a room to use as a real room, allowing John to experiment with "new materials for bright filaments." Because of this, he spent this year's New Year in the house.

But let's be honest, old Huntelaar didn't have much faith in his grandson!

Although he knew that his grandson was probably a genius, otherwise he would not have mastered four languages at the age of only eleven, and knew a lot of mathematics, physics, chemistry, etc., but the elder Huntlaar still did not have much confidence. After all, Edison was a well-known family in the country, and John was only a child of average intelligence at best.

It's just a momentary mood, and in order to encourage his grandson's enterprising spirit, so old Huntelaar is willing to spend a lot of money for him to toss.

But......

"How much has it cost so far?"

Thinking about the number that Hans reported to him the day before yesterday, old Huntelaar felt a slight twist, turned his head and asked in a low voice.

"It's four hundred dollars, sir!"

Hans smiled bitterly and said, "And little Mr. Huntelaar gave me a list this morning, which is about a hundred dollars, and if it goes on like this, it may cost a thousand dollars by the end of the month!" Mr. ......"

At this point, Hans hesitated for a moment before he continued, "Do you think you need to remind little Mr. Huntelaar?" I really don't understand the usefulness of many things on the list, for example, if he wants to make a light bulb, he only needs the things on the first list, right? What did I buy so much sulfuric acid for today? ”

"Sulfuric acid?"

Old Huntelaal was taken aback when he heard this word!

Even if he didn't know anything about science, old Huntelaar had heard of sulfuric acid and knew it was dangerous! Involuntarily, a trace of worry rose in his heart, and he frowned and said, "Okay, I'll go up and take a look, you can let Miss Cook prepare dinner, and we'll be down in ten minutes." ”

"Yes, sir."

Under Hans's somewhat worried gaze, old Huntelaar took off his coat and went upstairs to the door of John's "real yàn room".

"Gotcha! Get! ”

A soft knock on the door woke John from his contemplation, and he quickly opened the door to see his grandfather standing in the doorway with a small box.

"John, here's what you want."

Old Huntelaar handed the box to John and said lightly.

"Oh, here?"

John immediately took the box in surprise and opened it directly, and said casually while counting the contents of the box: "Thank you, the materials for making zuò bulbs are all available with these things!" ”

"All ready?"

Old Huntelaar frowned when he heard this, and said in a deep voice: "John, since the materials you want are all ready, why did you ask Hans to buy any sulfuric acid today?" Did you know that it is a very dangerous thing, and if you are not careful, you can hurt yourself? ”

"Huh?"

Hearing his grandfather's rather displeased question, John was stunned at first, and then laughed.

After returning from New Jersey, the relationship between the grandparents and grandchildren eased considerably, and old Huntelaar had not spoken to him in that tone for several days. But hearing this today, John was not uncomfortable, but had a warm feeling.

Before his grandfather caught up with the fire, John hurriedly explained: "Sir, I didn't buy sulfuric acid to make light bulbs, but to make batteries!" ”

"Batteries? What's that? ”

Stunned for a moment, old Huntelaar hurriedly asked.

"Uh......"

John scratched his head with a headache and muttered for a while before he spoke, "Let me tell you this, you know that kerosene lamps need kerosene to turn on, right?" ”

"Nonsense!"

Old Huntelaar's eyes widened, and he said angrily.

Shrugging his shoulders, John smiled: "That's it, then the lights need electricity if they want to turn on, we don't have motors and other devices at home, and they are too expensive, so I want to make a battery from sulfuric acid and lead and other things to power the bulbs that will be made in the future...... Well, it's the same as providing kerosene for kerosene lamps! ”

As soon as John explained this, old Hunt Latalton understood.

But......

Old Huntelaar's face did not relax, he frowned and asked, "John, what else are you making this ......?"

"Battery!"

John hurriedly said again.

"Yes, the battery!"

Old Huntelaar's gaze was firmly fixed on his grandson's face, and he asked in a deep voice, "Where did you learn this kind of thing?" If you know some physics and mechanics, you can roughly guess the structure of the light bulb after looking at it, but what about this battery? ”

Under his grandfather's burning gaze, John didn't mean to be nervous at all, he smiled calmly: "This is what I read from a book, and I roughly understand its principle, and I think it's quite simple, so I thought I'd try to make it myself." ”

"What did you read in the book? Which book? ”

Old Huntelaar asked in hot pursuit.

His eyebrows twitched slightly, and John smiled: "I forgot my name, it's just a book in your study, if you're interested, I can find it out for you." ”

"The books in my study?!"

Old Hunt Laarden's mouth opened wide in disbelief. There is indeed a large study room at home, and there are hundreds of books in it, but except for some art and philosophy books, most of them are commercial newspapers and books, how can there be such a thing?

But this time, without waiting for old Huntelaar to speak, John went on to explain: "It should be a book on business intelligence, written by an Englishman, with instructions on this sulphuric acid battery. Well, I remember that the evaluation of it was that it was too short and dangerous, so it affected the value or something...... The principle is very simple, Europe has been around for decades, and someone taught me when I was in the East, so I remembered it as soon as I saw it. ”

"Hoo ......"

Hearing this, old Huntelaar let out a long sigh of relief, and finally relaxed from the state he had just had. But in an instant, his gaze at his grandson became hot again!

It's just a business brief, and he can see how the battery is made, so he wants to try to make it?

Is this kid really a genius?!

After watching his grandson groan for a while, John felt a little uncomfortable, and then old Huntelaar relaxed his eyes, nodded and said, "Okay, but this sulfuric acid must wait until your bulb is made before it can be bought for you, and it can only be bought for a short time at a time!" ”

Without waiting for John to answer, old Huntelaar turned and opened the door, and before he went out, he left a sentence: "Dinner will begin in five minutes, don't be late!" ”

"Kata!"

The door was shut.

John in the room laughed silently.

Looking at the materials he had just arrived, and then at a bamboo fan full of oriental charm on the table, John groped his smooth chin, and his eyes were full of smiles: "Mr. Thomas Edison, since you have decided to rob you of one of your most influential moments, what should you do with Ming, who has spent the most time and thought about it?" That's a real annoyance......"

Tips: The new domain name "biquge.info" has been launched by Biquge, and the original domain name is about to be discontinued. Please tell each other, thank you!