Chris_M said..

I'm gonna send you all off to your rooms without any pudding if you don't stop squabbling

Aww.... Muuummmm! I wanted to argue some more!!

I was going to bring up my flying car made from recycled milk cartons, and now I won't get the chance!

Macroscien said..


By attacking author itself , you can not change scientific facts !

Nor literature...

Who said "The works of Shakespeare are rubbish, it was written by a monkey." ?

www.telegraph.co.uk/technology/news/8789894/Monkeys-at-typewriters-close-to-reproducing-Shakespeare.html

"The experiment attempts to prove the theory that an infinite number of monkeys sitting at an infinite number of typewriters would eventually reproduce the works of Shakespeare by chance."

FormulaNova said..

As a gesture of peace, please let me know how your extra special airbag in a bumper bar is going to work?

Haven't you ever seen our human space vehicle landing on another planets ?
Really?
Follow my advice and switch channel on your TV.

Maybe automobile is not about rocket science now, but one day will be and inventions in conquering the cosmos will be translated into our everyday life.

Battery operated drill you use everyday also cost few billion dollars to invent and develop ( as I byproduct of Apollo mission ).

ok few technical details. How it works already on this remote planets.

Proximity sensor detect approaching impact with ground on landing ( ledar or radar) and deploy over sized airbag that cushion the landing on this planet.
Similarly computer soon to be compulsory in all road vehicles ( already party implemented in stability control and engine , security etc) will detect inevitable crash
before it actually happen ( by calculation speed vectors, moments, distances and trajectories ) and deploy airbag in front of the vehicle.
Obviously not during your parking maneuver when you are using your bumper to move next vehicle but when at speed.

Now this extra 1 meter inflated bag in front of your vehicle could make this difference between death and life.

The lighter the vehicle the better results, so I will not be surprised if technology will be deployed first in bicycles and motorbikes.

BTW there is brilliant Aussie company, located in Brisbane that actually developing similar system for Remotely Operated Flying Vehicles or Autonomous so called Drones.
By using video cameras there are able to detect other flying objects and avoid collision (so much improvement over proposed by you accelerometers sensors - that require physical contacts of the objects)

FormulaNova said..

So, is there something clever about this that I have missed?

Maybe yes, If you still have old vehicle that doesn't have parking sensor, you may missed to observe that ultrasonic detectors are common already.
You possibly could retrofit your car with one of those purchased on eBay.
Anyway cheap automobile version will not work well on Moonar lander due to lack of air ( needed for ultrasonic device to operate) or docking to ISS.

Macroscien said..

FormulaNova said..

So, is there something clever about this that I have missed?

Maybe yes, If you still have old vehicle that doesn't have parking sensor, you may missed to observe that ultrasonic detectors are common already.
You possibly could retrofit your car with one of those purchased on eBay.
Anyway cheap automobile version will not work well on Moonar lander due to lack of air ( needed for ultrasonic device to operate) or docking to ISS.

There you go again, trying childish insults. I have a car that has been fitted with reversing sensors from the factory, I have fitted one with a kit from ebay, and about 10 years ago I have built a 'parking radar' from a kit. So, yes, I do have a little understanding of ultrasonic sensors.

Okay, in the interest of debating the science. Does an ultrasonic transducer have enough time to detect a target that is closing at 220kmh, but is still a few meters away?

Dezman said..

You missed 'proximity detector' not deceleration Formulanova! 2cents worth.

Dezman, your 'proximity detector' is going to trigger an airbag if your car is sitting behind another car at 100kmh. Is that what you really want?

What if a bird swoops infront of your car at 100kmh?

You have probably missed that Macro reedited his post after I replied, so hopefully you can forgive me for not addressing all his points

Wow, Macro is still re-editing his original post.

I guess I should take the advice I have been given and go for a sail. Ciao!

FormulaNova said..

Macroscien said..

FormulaNova said..

So, is there something clever about this that I have missed?

Maybe yes, If you still have old vehicle that doesn't have parking sensor, you may missed to observe that ultrasonic detectors are common already.
You possibly could retrofit your car with one of those purchased on eBay.
Anyway cheap automobile version will not work well on Moonar lander due to lack of air ( needed for ultrasonic device to operate) or docking to ISS.

Okay, in the interest of debating the science. Does an ultrasonic transducer have enough time to detect a target that is closing at 220kmh, but is still a few meters away?

First . If you employ me now online to resolve all technical issues associated with design all new vehicle- I am afraid that army of 5,000 engineers and technician could loose their jobs and prospect to earn real money.
We may produce plans here in details, draw sketches on paper handkerchief but I am affraid that I will not be able to mass produce this automobile in my shed.
Returning to energy of your speeding vehicle you could compute this:

E=mV*V/2 ( I still have problem with notation so I don't bother much about )

400 kg * 100km/h * 100km/h / 2 = 154 kJ

now substitute this in next equation to compress cubic meter of gases till the braking point of carbon fiber material of your airbag ....
serve yourself I am going out for sun now to expand my shed , just in the case....

by the way ,, on side of my handkerchif calculations I noticed that is exactly energy is required to boil half a liter of the water... So I may do myself a coffee brake ) in the case accident doesn't happen - but energy was absorbed and saved

Macroscien said..

Dezman said..
Man imagine how scared that bird would be! .

Why restrict air bag deployment to birds strike only ? What about mosquito and fly?
Is Formula so naive to think that computer is unable to differentiate between Elephant and Flee ?

Metal or flesh too, but most find it hard to imagine how close technology is to mimicking life! As in seeing, hearing and etc.
If we can conceive it we can build it...the future is coming fast.

what you have all also failed to mention is that the big oil companys own most of the patents for electirc engines and buy pretty much anything that remotely competes with them. The legal minefield you would have to jump thru to build it would be insane.

just look what happened to the sarich orbital engine.

Ian K said..

Roar said..

what you have all also failed to mention is that the big oil companys own most of the patents for electirc engines and buy pretty much anything that remotely competes with them. The legal minefield you would have to jump thru to build it would be insane.

just look what happened to the sarich orbital engine.

The Sarich engine was never going to work. Lets face it, if you're going to do internal combustion you can't beat pistons.

From Wikipeadia (You've got to believe Wikipeadia)

"
Technical Problems[edit]

The Sarich orbital engine has a number of fundamental unsolved problems that have kept it from becoming a usable engine. Some key components cannot be cooled and others cannot readily be lubricated, so it is very susceptible to overheating.[1] At one press conference at which Sarich presented the engine, automotive engineer Phil Irving (designer of the Vincent Motorcycle and Brabham Formula One engines) pointed out a number of technical difficulties. Some processes developed for the engine could be used for other engines, such as the Orbital Combustion Process, an air/fuel precompresser for injection."

This may not not be entirely true . That was always the case with sealing rotating pistons in Wankel engine for example, but the latest progress seems to overcome this hurdle. ( Aussie company again !)
The revolution could even go as far as removing sealing rings from pistons in our traditional combustion engines all together.
But that improvement shouldn't distract us from right track to the Electric Vehicle replacing combustion one.
slashdot.org

Roar said..[/b]
just look what happened to the sarich orbital engine.

I have been thinking about Tesla Turbine converted into combustion engine....if it works ??
Suppose the combustion happen in the center and pressure released through turbine blades ( or opposite from outer diameter to the center....
With hypothetical high efficiency of Tesla Turbines up to 95% or even more, no sealing rings required, blades made of carbon grephene composites or titanium...
possibly too easy and as such should be already in use if really works....
just thinking a loud...

Ian K said..

I've got it Macro, design and manufacture a quiet garbage truck and the world will beat a path to our door. Google tells me it's a world wide gripe. I'm sure it's technically possible, just no vehicle manufacturer has bothered to look into it. It's a huge market up for grabs.

Maybe there is really something in it? Look, so much competition on small cars but not so much on trucks, buses. Few big companies and names survived all competition Caterpillar, John Deer, Volvo, PeterBuilt etc

Even machinery for our mining sites is all built overseas. But again there is a problem. There are so reliable so worth to spend extra.
Electric garbage truck could be one of those hits but I think that energy consumption for running hydraulic rams inside to compact stuff is quite high.
Mileage then to carry everything to dump land fill also everyday longer.
But again, the client is city council for buses and garbage trucks. Could easier to convince to implement greener technologies.
Specifically for them using in wheels electric motors shouldn't be a problem maneuverability when you have
4 wheels powered and steered at same times is just tremendous.

At this moment our garbage truck needs three attempts forwards/ backwards to access every bin at our cul de sac.

The question remain: Could our automobile plants could be converted to build buses and garbage trucks ?
With orders portfolio from our cities should be a problem with demand.