Hey guys.
So I have a science fair in my college in a month.
I want to make something different. Not the usual boring stuff seen in science fairs.
So I thought of making a giant indoor slow rc airplane but it needs helium which is difficult to get.

What I now need is a new idea.
What should I make?. I am unfamiliar with arduino and other programming so that's out of the picture.
So what else can I make.
Just need ideas , you don't have to explain the details if you don't have the time.I was thinking of making a steam engine or maybe a air compressor... anything but sure not a 🌋...coz that erupts every year at every science fair.😎

JET BIKE

You could do a 2-3 stage model rocket.
In addition, you can sense the altitude and display it.

Interesting..coz I was thinking of a hey engine too...
I am a little unsure If I can make one that works....
@steam ... brilliant idea. ..what kind of fuel Ami looking at? Also will tge cost exceed 10k..!! ? Coz that's my limit.

What is the budget? Maybe I could suggest a better idea

well i cant go beyond 10k under any circumstance... and i am looking to make one for around 5k just to have some spare money for later....let me know if you have anything in mind. tnx.
if possible let me know on whatsapp 8888166945.

https://en.m.wikipedia.org/wiki/Vertical_axis_wind_turbine

Radio control hot air balloon or helium filled blimp

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Simple water fall power generator
Should cost you less than half your budjet

Make a project where you show why perpetual motion is NOT possible. That shouldn't take a lot of money either.
Here are some links that I feel should help you:

https://futurism.com/what-physics-says-about-perpetual-motion-machines-free-energy-r/

https://www.youtube.com/watch?v=jiAhiu6UqXQ&index=2&list=PLh1oASp87DmEhYL2vue5uWnny9y0oDPSP

I spent a lot of time trying to figure out the last one, in fact I asked a sample piece to Wasaby(Channel owner) to ship me one for money. But he didn't reply

Interesting...coz a friend of mine is making a perpetual machine.... Using water bottles on a wheel....
I'll ask him to change his topic header  from' perpetual machine' to ' why perpetual machines don't exist'....😎😄👍

I think I am gonna go with a acetylene gas airplane... Will share the build when I do it..
I suppose the biggest challenge will be too make it leak proof

Did you make anything?