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Smarter speed bump using non-Newtonian liquid

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Re: Smarter speed bump using non-Newtonian liquid

#11

Post by LeifCarrotson »

jmdocherty wrote: post #5

This a really interesting idea. The problem of stabbing/puncturing can be solved by moving the liquid lower in the ground and having a floating more robust layer above. I imagine it would be particularly useful in places like outside hospitals where ambulances would prefer a smooth ride if possible. However, I'm sure we used to make a liquid with similar properties when we were children out of cornflower (?) and wate…

I'm sure they will make it pretty durable. A reasonable method of construction would be like a tire, with steel mesh under thick, tough rubber.

And it's corn starch, not corn flower, and water. About a 2:1 ratio.

Re: Smarter speed bump using non-Newtonian liquid

#12

Post by maxerickson »

jmdocherty wrote: post #5

This a really interesting idea. The problem of stabbing/puncturing can be solved by moving the liquid lower in the ground and having a floating more robust layer above. I imagine it would be particularly useful in places like outside hospitals where ambulances would prefer a smooth ride if possible. However, I'm sure we used to make a liquid with similar properties when we were children out of cornflower (?) and wate…

Cornstarch.

It is processed to isolate the starch.

Re: Smarter speed bump using non-Newtonian liquid

#13

Post by Xylakant »

naraniano wrote: post #10
TeMPOraL wrote: post #4

Earlier quoted context omitted.

No tears shed by me. Speed limits are to be obeyed, not ignored.

Let's see if you shed a tear when a car breaks and city hall (this is, all the citizens, including you) has to pay for it.

These are installed in areas with speed limits at walking speeds. So if you're driving fast enough to damage your car and then seek damages, the best thing will that might happen is that they'll laugh you off. The worst thing is that you'll loose your drivers license. (No tears shed either)

Re: Smarter speed bump using non-Newtonian liquid

#14

Post by ricardobeat »

naraniano wrote: post #2

Being Spanish, I know someone will stab those with a knife or a screwdriver the first day they are installed. That someone might even be me. I mean I'm happy they are proud of their invention but, please. Don't make me laugh.

How many public lighting bulbs and metro card readers have you broken recently? Those are all more fragile than this.

Re: Smarter speed bump using non-Newtonian liquid

#15

Post by mkl »

LeifCarrotson wrote: post #11
jmdocherty wrote: post #5

This a really interesting idea. The problem of stabbing/puncturing can be solved by moving the liquid lower in the ground and having a floating more robust layer above. I imagine it would be particularly useful in places like outside hospitals where ambulances would prefer a smooth ride if possible. However, I'm sure we used to make a liquid with similar properties when we were children out of cornflower (?) and wate…

I'm sure they will make it pretty durable. A reasonable method of construction would be like a tire, with steel mesh under thick, tough rubber. And it's corn starch, not corn flower, and water. About a 2:1 ratio.

In many countries it's called "cornflour" or "corn flour".

Re: Smarter speed bump using non-Newtonian liquid

#16

Post by code_duck »

"BIV

baden inteligente de velocidad

This Intelligent Speed Bump (BIV) is based in Non-Newtonian fluids dynamics in which particles in natural movement as liquid align when receiving an impact, thus entering into a solid state. This fluid is also biodegradable and harmless for human beings.This fluid inside the BIV is the solution to vehicles at sensible speed that will find no obstacle when driving over it.

The other essential element to achieve the BIV is the plastic covering made of a special material highly resistant to aging, wear, vandalism and unfavorable weather conditions. Our plastics are planned for recycling purposes so that we can ensure sustainability by reusing disposed plastics. BIV is a new speed bump that guarantees effectiveness at exceeding speed regardless vehicles' type or weight. The speed limitation that we set will be effective for every user at the road.

Installations is a fast and simple procedure by screwing up the metal plates onto the pavement in 15 minutes.

This Intelligent Speed Bump is registered and patented worldwide with the aim of improving road traffic and road safety: - Reduces the possibility of traffic accidents and fatigue caused to shock absorbers. - Reduces pollution, fuel consumption and noise pollution caused by continuous bumping

Currently BIV is available for indoor activities: Parking lots, Garage and Covered areas."

Re: Smarter speed bump using non-Newtonian liquid

#17

Post by jfk13 »

LeifCarrotson wrote: post #11
jmdocherty wrote: post #5

This a really interesting idea. The problem of stabbing/puncturing can be solved by moving the liquid lower in the ground and having a floating more robust layer above. I imagine it would be particularly useful in places like outside hospitals where ambulances would prefer a smooth ride if possible. However, I'm sure we used to make a liquid with similar properties when we were children out of cornflower (?) and wate…

I'm sure they will make it pretty durable. A reasonable method of construction would be like a tire, with steel mesh under thick, tough rubber. And it's corn starch, not corn flower, and water. About a 2:1 ratio.

American "corn starch" = British "cornflour". E.g. see https://en.wikipedia.org/wiki/Corn_starch.

Re: Smarter speed bump using non-Newtonian liquid

#18

Post by l0b0 »

I wonder how the mixture and covering will stand up to millions of crossings, at all kinds of temperatures? Does the covering turn brittle, like most materials after cooling, heating, stretching and being exposed to sunlight? Does the mixture remain uniform over time and at different temperatures, so slow drivers don't get a surprise? Can it withstand the sideways force when someone suddenly brakes while passing it? Will it withstand the rare passing of an extremely heavy vehicle, like a tank or special transport? Is it easily sabotaged?

Re: Smarter speed bump using non-Newtonian liquid

#19

Post by amenod »

hirsin wrote: post #8

A student startup built something similar for potholes, which i think is a better use of the tech (1). Essentially road repair crews could carry a couple bags of the fluid and drop the bag into a pothole, where it would confirm to the shape of the hole while stiffening on impact from the tires. Unsurprisingly this was invented in Cleveland. 1. http://www.popsci.com/technology/article/2012-04/bouncy-thic...

> Unsurprisingly this was invented in Cleveland.

For us uninitiated - why? Quality if the roads there?

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