Dear guest, you must be logged-in to participate on CrazyEngineers. We would love to have you as a
member of our community. Consider creating an
account or login.
We figured out right in the first year that if the experiments were performed with honesty and integrity you'll always get a wrong graph. Then one of my smart friend devised this technique of plotting the graph first (which would impress the generations of engineers to come) and then randomly picking up 'readings' from the graph to come up with the 'obtained values'.
...the professor threw his journal right on his face saying 'that's an old technique' 👎 😁
😁 Lazy Successors. CS-Engineers rarely had to plot graphs, except in first year. We convinced the professor that only one person per group would take the readings and ultimately only one person in the class took reading and rest of us copied.
I remember once my Professor asked me for Linear Reading. I told him Sir may I know the % Accuracy for Resistors we are using and is the Instrument itself is standard? First let me know then ask me. From that day I was most wanted student in class. Professor used to avoid technical practical question in viva too. 😉
Hhaha nice 😀 I remember once when the graph was significantly different from the original graph... I went back to the lab and argued with the professor. "The experiment is wrong and everyone has been faking their reading for the past 7 years" and he yelled back saying "Get out of my lab!" and then I went back to plot it on Matlab and do the experiment again, but this time with different results still not matching the original graph. Realized the tank (it was a fluid mech exp) that was filled with water had fishes growing in it! Found out that the last 6 or so months of experiments were all wrong.
I remember having to determine the gravitation constant using an Atwood's machine in my high school in 1953. I got a value of 320 cm/sec.sec instead of 980.
The physics teacher appreciated my honestly reporting such a value, but could not pass me on that. He initiated an investigation into the error. Finally it was traced to a jewelled bearing, which instead of being near zero friction, was acting like a brake. After rectification we got a value 920 cm/sec.sec
I finally got a pass in that experiment.
For the curious, this is the experiment though in those days we had spring wound mechanical stop watches for timing.
I agree.
My school was attached to a Roman Catholic Seminary. The teacher was Rev.Fr. Fredrich, a German priest. The Atwood's machine was a 1784 AD invention by Rev.George Atwood of Cambridge, another Christian priest.
I am forever garteful to my science teacher, who actually inspired me to follow my interest in science.
In those days Sir J.C.Bose, S.N.Bose, Sir C.V.Raman were household names and all children were looking up to them in science with a fervour like that generated by stalwarts like Gokhale, Nehru and Mahatma in the fight for independence.
Looks like the inexorable second law of thermodynamics operates in this too, bringing everything to a ground state including scientific curiosity.
👍 very nice ...
even v do the same thing .. and our measuring instrument always have some error .. may it be stopwatch or some gauges and like to say thank u to our first batch
Some 'antiques' at the laboratory are never meant to be used - like the machines at our mechanical and physics labs! Record books were the greatest teachers I could find. No one actually knew how to do some of the EXPERIMENTS. The final year just flew by. Practicals were just for namesake. We wrote whatever we felt, even drew diagrams with whatever 'little' fact was received from the Record!
We should remember that political cartoonists the like of Abu, Thanu, the inimitable RKL and numerous others past, present and global are not just poking fun, but trying to prod us to laugh first and later cogitate on the ills of society.
Likewise, our own Chuck oAT.
While we laugh (LOL or just a quiet smile), it may be worthwhile to think of what ails engineering competence today.
Our education system is a sham. Don't give me examples of great engineers and doctors that come out of the system. Out of a large population sample, it's painfully average to have a few genius engineers, scientists.
#-Link-Snipped-# was founded by Jonathan Ceder and Alexander Drummond. Most recently, BioLite won the 2011 St. Andrews Prize for the Environment in May.
#-Link-Snipped-#
Shame. We have millions in India still cooking using natural fuel. No one, out of our prestigious universities could come up with this earlier? Again, don't give examples because if they did it well, we would have known about it.
I will make a larger post on Debate/Discussion. Either I should be a part of the solution or shut up and take it. I'll go for the solution. No idea how but it has to be brutal...
lol i still remember that graphs i even never changes the values
i only changes the graph shape believing on my talent my faculty and lab in charges given the marks and i am successful in graph and i called as good in lab
note: i only do it in my machines lab only in others i got the exact results
Then one of my smart friend devised this technique of plotting the graph first (which would impress the generations of engineers to come) and then randomly picking up 'readings' from the graph to come up with the 'obtained values'.
Hhaha nice 😀 I remember once when the graph was significantly different from the original graph... I went back to the lab and argued with the professor. "The experiment is wrong and everyone has been faking their reading for the past 7 years" and he yelled back saying "Get out of my lab!" and then I went back to plot it on Matlab and do the experiment again, but this time with different results still not matching the original graph. Realized the tank (it was a fluid mech exp) that was filled with water had fishes growing in it! Found out that the last 6 or so months of experiments were all wrong.
i am never perfect with the graphs...😔
i never plotted graphs myself.. neither at school nor at college..
always it was done by my friends or we use to take the readings of our seniors kept at the lab
I remember once my Professor asked me for Linear Reading. I told him Sir may I know the % Accuracy for Resistors we are using and is the Instrument itself is standard? First let me know then ask me. From that day I was most wanted student in class. Professor used to avoid technical practical question in viva too. 😉
i am never perfect with the graphs...😔
i never plotted graphs myself.. neither at school nor at college..
always it was done by my friends or we use to take the readings of our seniors kept at the lab
same here, but my dad plots the point and my mum joins the points... am gifted with such a wonderful parents!! 😛
We had to plot graphs only in our first two years of engineering. In first year plotted the graphs sincerely but in 2nd year we even copied the readings along with graphs. While performing the experiments blamed the college for not providing good working instruments. 😀😎
