Chapter 1248: Chapter 152: The Star of Gottingen
Po’er’s voice of doubt instantly transford the tense atmosphere in the conference hall into one as taut as a drawn bow.
The citizens didn’t know the reason, they looked at each other, while the scholars from various countries attending the conference mostly held a wait-and-see attitude.
Many had already been convinced by Ohm’s theories before, and even if they had doubts in their hearts, they would not make trouble on the spot. Compared to the initial version of “current calculation” encountered by German scholars, this ti Ohm’s lecture manuscript was clearly several iterations ahead. Its contents were not only easy to understand, but the relevant data had also been examined and corrected multiple tis.
Even the originally complex and ssy mathematical analysis in the book was further refined with Gauss’s help, and the experintal design was upgraded with improvents by Faraday and the experintal physicists of the Royal Society.
The only thing Ohm lacked now was that definitive experintal demonstration to prove his point once and for all.
Ohm took a deep breath and slowly unveiled the curtain covering the experintal table before him, instantly revealing a delicate bridge circuit to everyone’s eyes.
“For most researchers of electromagnetism, especially those experintal physicists, even though we previously did not have the concept of resistance, I believe everyone could feel the presence of resistance during current experints. In experints, the material of the conductors used differs, the instrunts in series differ, and the finally asured current also varies.
Initially, I suspected this was caused by the unstable voltage of the Voltaic pile, so I later replaced the power source with a more stable thermoelectric battery, yet the asured results were the sa. To prove my point is correct, I’ve prepared two experints today, the first of which is a series circuit experint to illustrate the impact of resistance change on the magnitude of current.”
Upon saying that, Ohm picked up the peculiar device on the experintal table and showed it to the audience: “Firstly, I must thank Sir Arthur Hastings for his trendous help, because this new device he invented is simply perfect for verifying the existence of resistance. As you can see, it’s a wooden board about 30 centiters long, wrapped with turns of nickel-chromium alloy wire, and both ends fixed with screws. A small tal rod with a spring above the device can slide freely on the tal wire to adjust manually. Thanks to this, I can arbitrarily determine the length of nickel-chromium alloy wire in series into the circuit by adjusting the tal rod, thereby changing the effective resistance in the circuit. Sir has nad this new invention the sliding resistor, and I find the na exceedingly fitting.”
With Ohm’s words, a burst of exclamations erupted from the audience.
The electromagnetism researchers present were no ordinary individuals; they imdiately realized the significant impact of this new device on electromagnetism research.
Once the sliding resistor is in series with the circuit, if resistance truly exists, then as Ohm adjusts the sliding resistor, the pointer of the amter will surely deflect in sync.
To verify the concept of resistance, there’s no more suitable device than this one.
With this thought, Oersted, Ampere, Arago, and others cast their eyes toward Sir Arthur Hastings, not far away; even the previously sowhat annoyed Duke of Sussex nodded at him appreciatively.
But to everyone’s great surprise, the focus of so many top-tier scholars did not cause the 24-year-old young man to show the slightest ripple on his expression; he rely sat there with calm composure, much like John Gauss, director of the Gottingen Observatory.
Among the scholars, only Faraday remained the most composed, smiling amiably as he said to Ampere and Oersted beside him, “I told you before, this is a promising young scholar. There’s no inevitable link between scientific achievent and age.”
John Gauss, who made a na for himself in Europe at the age of 19 by proving the constructibility of the regular heptadecagon, nodded in agreent, “I agree.”
Ampere did not have much reason to disagree.
Although he wasn’t quite as much of a genius as Gauss, at 26 he was appointed professor of physics, and at 33, Napoleon appointed him as the Academic Director of the Imperial University of France—a quintessential example of achieving success at a young age.
Facing several young talents, Oersted could only jest, “You and Professor Hastings belong to the sa kind, while I belong to the Ohm kind. After all, I was already 30 when I beca a professor, and 43 when I discovered the magnetic effect of current, the sa age as Mr. Ohm.”
Faraday, hearing this, comforted, “Hans, your achievents are not just limited to discovering the magnetic effect of current; you also electrolyzed and discovered the aluminum elent.”
At these words, Oersted couldn’t help but laugh and say, “Originally, the honor of discovering aluminum should have belonged to your ntor Sir David, for he was the first to report the existence of aluminum, but unfortunately, he failed in electrolyzing aluminum tal.”
Hearing this, Ampere couldn’t help but recall the past incident in Paris when David ‘snatched’ the honor of discovering iodine.
While counting on his fingers, he joked, “No matter; Sir David has discovered more than enough elents in this lifeti. He’s probably the person who’s discovered the most elents in the world to date, right? Let count… Potassium, sodium, calcium, magnesium, strontium, barium, boron, silicon, oh, and not to forget, the heaviest one, iodine.”
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