Can You Solve These Problems?

This page contains a list of interesting engineering and scientific problems noted by the founder of this website. These problems either relate to the fundamental sciences or practical problems present right before our eyes. Solutions may exist for some of the problems but who knows, there can be many more simple yet better and exciting solutions!

Now, is it necessary that new solutions to these problems fit into the definition of an invention? The honest answer is, may or may not be. Our article “Idea, Invention and Patent” provides sufficient information to find out what is invention and what is not.

We expect this list to help some curious minds to find their way to the world of inventions. Anybody, if wishes so, can pick up and work on these problems.

1To biomimic the water transport mechanism of plants to develop a silent and efficient pump.
2Is it possible to demonstrate Seebeck effect using liquid conductors or a combination of solid-liquid conductors?
3To significantly increase the rate of water condensation in solar still (less heat loss, more efficiency).
4Solar cell material – to replace silicon with cheaper materials (may be carbon). 
5To develop solar cell capable of converting the infra-red portion of solar radiation into electricity.
6To develop a motor using electrokinetic effect.
7To utilise photosynthesis like mechanism for electricity generation.
8To manufacture thin plastic like material (as an alternative to polythene) from waste carbohydrate. 
9To eliminate the need of gearboxes in helicopters, which are troublesome at times.
10To significantly reduce the heat of evaporation of water.
11To significantly reduce the water usage for cleaning clothes and utensils. 
12To generate AC power directly from solar cell.
13To develop affordable and harmless way of wireless electricity transfer.  
14To develop suitable alternative to Pitot tube for aircraft speed sensing application (in use for more than 100 years!).
15To develop better alternatives to the indirect thrust indicating parameters (traditionally N1 or EPR) for the aircraft gas turbine engines. 
16To develop cheap non-contact type thermometer for human body temperature measurement.
17To develop an affordable, non-invasive equipment for detecting/monitoring lung congestion. 
18To develop an affordable, non-invasive equipment  for monitoring blood sugar levels.
19To identify a method for direct measurement of static temperature in a fluid flow, replacing the indirect computation through stagnation temperature.
20To develop a device for automatic removal of wrinkles in clothes (do away with the painful ironing of cloths!)
21To identify supplementary heat transfer mechanisms in heavily loaded helicopter/windmill gearboxes (traditionally oil cooled).
22To biomimic nature’s flapping wing mechanism for micro air vehicle design in search of more efficient flights.
23To develop a simple device to reduce the effort to install and uninstall hose on regulator and gas oven for domestic use. 
24To develop an affordable automatic cooking machine for basic foods (just select the option, add the ingredients and then forget!). 
25To develop a simple and effective method for arsenic removal from drinking water (remember, your RO machines cannot remove all types of arsenic ions).
26To biomimic water birds’ (like swan) sieve inside mouth to remove mud, for water filtering devices.
27To develop a simple, hand-hold device to identify artificial egg and rotten eggs. 
28To improve the domestic gas ovens to maximize use of the combustion heat. 
29To develop a technology to prevent one from taking a photo of his/her computer screen (to allow views but prevent unauthorised data capturing).
30To develop a simple, hand-hold sensing system for detecting arsenic, fluoride in drinking water (possibly nitrates, calcium, magnesium, iron etc. too). 
31To develop a technology to reduce and safely dispose waste water from water filtration system like RO.
32To biomimic the heat transfer mechanism in human body for better heat engines.
33To develop a technology to prevent ear-ache in passenger aircraft (it happens with many passengers, doesn’t it?). 
34To improve the common toothbrush so that after cleaning it does not hold any moisture (to eliminate chances of growth of microorganisms).
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