u/PresentShoulder5792

Image 1 — Why El nino has an effect opposite to rest of India on North East and North Bengal?
Image 2 — Why El nino has an effect opposite to rest of India on North East and North Bengal?

Why El nino has an effect opposite to rest of India on North East and North Bengal?

While the rest of India faces the wrath of a super el nino this summer, with 100s of cities having record breaking temperatures and a widespread heatwave effect over entire india including north and peninsular India, why is the north east and north Bengal unusually cool this summer? even cooler than usual. Its not even a local weather phenomena as this anomalousness has almost been persistent for almost over a month and half by now.

u/PresentShoulder5792 — 3 days ago

Impact of El nino in north east and sub himalayan west bengal and an unusually cool and rainy summer.

While the rest of India faces the wrath of a super el nino this summer, with 100s of cities having record breaking temperatures and a widespread heatwave effect over entire india including north and peninsular India, why is the North East and North Bengal unusually cool this summer? even cooler than usual. Its not even a local weather phenomena as this anomalousness has almost been persistent for almost over a month and half by now.

u/PresentShoulder5792 — 3 days ago

So my idea is that if I take a ferrite rod and wrap it in say 500 turns of secondary fine wire and 5 turns of primary thick wire and discharge it through a camera flash capacitor (330v) which probably can be charged by a standard camera flash circuit(or 220 volt ac with a series resistor and diode) and short it through the 5 turn primary the instantaneous current in the coil should reach 100s of amps, by keeping the ferrite core a rod instead of closed core, it avoids magnetic saturation of the ferrite core.

Since there will be a large instantaneous change in current in the primary coil and the magnetic field induced by the primary will rapidly collapse, it should induce a massive voltage in the secondary due to a large number of turns, so it should be even higher than the 33kv which i would normally get by a 100:1 ratio and input of 330 volts probably 50kv, this is just an idea I don't know how feasible its in real life.

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u/PresentShoulder5792 — 19 days ago

So my idea is that if I take a ferrite rod and wrap it in say 500 turns of secondary fine wire and 5 turns of primary thick wire and discharge it through a camera flash capacitor (330v) which probably can be charged by a standard camera flash circuit(or 220 volt ac with a series resistor and diode) and short it through the 5 turn primary the instantaneous current in the coil should reach 100s of amps, by keeping the ferrite core a rod instead of closed core, it avoids magnetic saturation of the ferrite core.

Since there will be a large instantaneous change in current in the primary coil and the magnetic field induced by the primary will rapidly collapse, it should induce a massive voltage in the secondary due to a large number of turns, so it should be even higher than the 33kv which i would normally get by a 100:1 ratio and input of 330 volts probably 50kv, this is just an idea I don't know how feasible its in real life.

reddit.com
u/PresentShoulder5792 — 20 days ago

So my idea is that if I take a ferrite rod and wrap it in say 500 turns of secondary fine wire and 5 turns of primary thick wire and discharge it through a camera flash capacitor (330v) which probably can be charged by a standard camera flash circuit(or 220 volt ac with a series resistor and diode) and short it through the 5 turn primary the instantaneous current in the coil should reach 100s of amps, by keeping the ferrite core a rod instead of closed core, it avoids magnetic saturation of the ferrite core.

Since there will be a large instantaneous change in current in the primary coil and the magnetic field induced by the primary will rapidly collapse, it should induce a massive voltage in the secondary due to a large number of turns, so it should be even higher than the 33kv which i would normally get by a 100:1 ratio and input of 330 volts probably 50kv, this is just an idea I don't know how feasible its in real life.

reddit.com
u/PresentShoulder5792 — 20 days ago

So my idea is that if I take a ferrite rod and wrap it in say 500 turns of secondary fine wire and 5 turns of primary thick wire and discharge it through a camera flash capacitor (330v) which probably can be charged by a standard camera flash circuit(or 220 volt ac with a series resistor and diode) and short it through the 5 turn primary the instantaneous current in the coil should reach 100s of amps, by keeping the ferrite core a rod instead of closed core, it avoids magnetic saturation of the ferrite core.

Since there will be a large instantaneous change in current in the primary coil and the magnetic field induced by the primary will rapidly collapse, it should induce a massive voltage in the secondary due to a large number of turns, so it should be even higher than the 33kv which i would normally get by a 100:1 ratio and input of 330 volts probably 50kv, this is just an idea I don't know how feasible its in real life.

reddit.com
u/PresentShoulder5792 — 20 days ago

So my idea is that if I take a ferrite rod and wrap it in say 500 turns of secondary fine wire and 5 turns of primary thick wire and discharge it through a camera flash capacitor (330v) which probably can be charged by a standard camera flash circuit(or 220 volt ac with a series resistor and diode) and short it through the 5 turn primary the instantaneous current in the coil should reach 100s of amps, by keeping the ferrite core a rod instead of closed core, it avoids magnetic saturation of the ferrite core.

Since there will be a large instantaneous change in current in the primary coil and the magnetic field induced by the primary will rapidly collapse, it should induce a massive voltage in the secondary due to a large number of turns, so it should be even higher than the 33kv which i would normally get by a 100:1 ratio and input of 330 volts probably 50kv, this is just an idea I don't know how feasible its in real life.

reddit.com
u/PresentShoulder5792 — 20 days ago

The same trick can be used to solve many intimidating looking integrals like:-

i) Integral 5 sin^4(x^2)/x^6 - 8 cos(x^2) sin^3(x^2)/x^4

Ans:- (-)sin^4(x^2)/(x^5), Note:- we have f(x^2) here instead of f(x) so need to account 2x as derivative of x^2 due to chain rule

ii) Integral tan^2 (x)/x^5- 4 ln(x) tan^2 (x)/x^5 + 2 tan(x) ln(x)/(x^4) + 2 ln(x) tan^3 (x)/x^4

Ans:- tan^2(x)ln(x)/x^4

u/PresentShoulder5792 — 21 days ago
▲ 2 r/AskElectronics+1 crossposts

So I bought today, one of these Chinese hv modules advertised as 400kv for 3 dollars, they probably output upto 40kv in reality, so with a 1.5 volt battery, it's producing 10-20kv (0.5cm arcs) they are rated at (3v-5v) , but my question is can I run it continuously this way in an open circuit for an air ioniser? Its generally advised to not run it for a long time or in open circuit due to internal breakdown as voltage can rise above breakdown voltage but since I am operating at much lower input voltage, it shouldn't be an issue?

u/PresentShoulder5792 — 23 days ago
▲ 3 r/ElectroBOOM+1 crossposts

So I bought today, one of these Chinese hv modules advertised as 400kv for 3 dollars, they probably output upto 40kv in reality, so with a 1.5 volt battery, it's producing 10-20kv (0.5cm arcs) they are rated at (3v-5v) , but my question is can I run it continuously this way in an open circuit for an air ioniser? Its generally advised to not run it for a long time or in open circuit due to internal breakdown as voltage can rise above breakdown voltage but since I am operating at much lower input voltage, it shouldn't be an issue?

u/PresentShoulder5792 — 23 days ago

I recently made a post, a few months ago about trying to create a very huge number and I was pointed that my number although it used a very large number of Knuth's arrows(↑) Googolplex to be exact and a height and base of googolplex was dwarfed by numbers like Graham's number which used an iterative approach and the arrow count becomes equal to the number in previous iteration, So I came with my own large number generating function.

So firstly there is a function iterated as f(i+1)=(fi ↑fi fi) iterated n times starting with f0=n. Let this function be called H(n), It already produces numbers far larger than Grahams number using this approach . Then I have another function G(n) which is the main large number generating function seeded by H(n) which produces sufficiently large inputs for G(n) iterated as:-

G0=H(n)

G(i+1)=Gi^(Gi ↑^Gi Gi) (Gi) this function is iterated H(n) times (^ denotes number of recursions)

It is a recursive function of form f^n(x)=f(f(f(f(f...n times)))...))) so essentially G(n) is G(H(n)) kind of twin recursive function and after each iteration the new humongous G(n) gets fed into the existing algorithm and this grows really fast, does my function exceed TREE(3)?

(* i and i+1 are the subscript here didn't find any way to put subscripts)

"G0=H(n)

G(i+1)=Gi^(Gi ↑^Gi Gi) (Gi) this function is iterated H(n) times (^ denotes number of recursions)"

Here I would like to explain it in more detail, G(n) function is both iterative and recursive and starts with the seed H(n) for G0, so G(1)=H^(H(n) ↑^H(n) H(n)) (H(n)) equivalent to H(H(H(H....H(n))))...) H(n) ↑^H(n) H(n) times, now the resultant G1 becomes the seed for G2 and the same process is repeated again. Such iterations are done H(n) times.

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u/PresentShoulder5792 — 29 days ago