The Observer
@the-observer-Vms2ZU Member
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Replied #Threads
SpaceX ‘Grasshopper’ Rocket Launches to Record Height—Then Lands
It is indeed breathtaking to achieve that 😀
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Reusable rockets? double the fuel ?
SarathKumar ChandrasekaranIS this video real?Can a rocket really land like this from where it had started its flight?(I am not a scientist so please forgive if...
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How does the sun cause heat on our bodies?
ianoopYes, light consist photon but sun rays consist radiation too which is not visible via necked eyes. Ultra voilet + infrared. Thank to Ozon layer which...
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How does the sun cause heat on our bodies?
ianoopApart from light source there are two more factor come with sun light/ Ultra-violet rays + infrared. Ultra-violet makes sun rays hotter and is main reason...
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How does the sun cause heat on our bodies?
so you mean the light reflected by the moon is of such less intensity that it doesn't have enough IR radiation with it for producing some...
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Posted #Threads
Reusable rockets? double the fuel ?
Just hopped across this SpaceX's Grasshopper video which made another feat this month. Is it good (or i would prefer the word feasible to introduce re-usable...
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Why don't trucks have aerodynamic front like cars?
But it does save cost for long highway hauls by giving less drag and hence maybe a noteworthy extra mileage .
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Posted #Threads
How does the sun cause heat on our bodies?
Hello, I felt this question relates a lot of radiative heat transfer and hence i'm posting it here. Actually came up during the moonlit night yesterday....
13 replies -
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How To Present Yourself In Seminar
I do this stuff sometimes.You just need to catch the audience off-its-brain. make them excited and cover up different angles of your topic.
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Can Air Act As "Ground" For Electrical Circuits?
Yeah Got it. Are these the tips that we're talking about? Hope they are visible
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Can Air Act As "Ground" For Electrical Circuits?
I guess i noticed some of those tips recently and clicked it on my mobile at an airbase. Lemme get back with a pic or 2...
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Rolling friction and lift in airplanes
SarathKumar ChandrasekaranFriction may be explained if we consider it as Resistence . So if there is a presence of friction , there has to be more...
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Rolling friction and lift in airplanes
A.V.RamaniAny wheel friction will only mean that more fuel is used to attain take off velocity at the prevalent conditions of altitude, temperature, air density and...
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Which is better? A project in drum brake or disk brake?
Hi, I guess it would be better to do it on a drum brake and improvise on its disadvantages. That way, you'll be able to better...
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Which is better? A project in drum brake or disk brake?
Hi, I guess it would be better to do it on a drum brake and improvise on its disadvantages. That way, you'll be able to better...
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Posted #Threads
Rolling friction and lift in airplanes
Hello, I need some enlightenment on this question that am not clearly able to think about in the last few hours so. I believe someone here...
4 replies -
Replied #Threads
Do automobiles (car,bike,bus,train) require earthing?
Well, thats' a good question. Earthing in automobiles is usually done on the chassis. It doesn't necessarily have to be the earth to ground always. There's...
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How to calculte centre of gravity using theoretical way
Theoretically.. it is done using front and rear axles loads. Am not much sure. Did that long back.
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