Designs can be everything.Colours are also one important factors in design.Here are the meanings of colours.

Red:
Red is the color of fire and blood,so it is associated with energy, war, danger, strength,power,determination as well as passion,desire,and love.Red has very high visibility,which is why stop signs,stoplights,and fire equipments are usually painted red.In heraldry,red is used to indicate courage.It is also a color found in many national flags.

To be more specific:
Light red represents joy,passion,sensitivity,and love.
Pink signifies romance,love,and friendship.It denotes feminine qualities and passiveness.
Dark red is associated with vigor,willpower,rage,anger,leadership,courage,longing, malice and wrath.
Brown suggests stability and denotes masculine qualities.
Reddish-brown is associated with harvest and fall.

Orange:
Orange combines the energy of red and the happiness of yellow. It is associated with joy, sunshine, and the tropics.Orange represents enthusiasm, fascination, happiness, creativity, determination, attraction, success, encouragement and stimulation.Orange increases oxygen supply to the brain, produces an invigorating effect,and stimulates mental activity. As a citrus color, orange is associated with healthy food and stimulates appetite.Orange is the color of fall and harvest. In heraldry, orange is symbolic of strength and endurance.

To be more specific:
Dark orange can mean deceit and distrust.
Red-orange corresponds to desire, pleasure, domination, aggression, and thirst for action.
Gold evokes the feeling of prestige. The meaning of gold is illumination, wisdom, and wealth. Gold often symbolizes high quality.

Yellow
Yellow is the color of sunshine. It's associated with joy, happiness, intellect, and energy. Bright, pure yellow is an attention getter, which is the reason taxicabs are painted this color. When over used, yellow may have a disturbing effect; it is known that babies cry more in yellow rooms. In heraldry, yellow indicates honor and loyalty. Later the meaning of yellow was connected with cowardice.Men usually perceive yellow as a very lighthearted, 'childish' color, so it is not recommended to use yellow when selling prestigious, expensive products to men – nobody will buy a yellow business suit or a yellow Mercedes. Yellow is an unstable and spontaneous color, so avoid using yellow if you want to suggest stability and safety.

To be more specific:
Dull (dingy) yellow represents caution, decay, sickness, and jealousy.
Light yellow is associated with intellect, freshness, and joy.

Green
Green is the color of nature. It symbolizes growth, harmony, freshness and fertility. Green has strong emotional correspondence with safety.Dark green is also commonly associated with money. Green has great healing power. It is the most restful color for the human eye; it can improve vision. Green suggests stability and endurance. Sometimes green denotes lack of experience; for example, a 'greenhorn' is a novice. In heraldry, green indicates growth and hope. Green, as opposed to red, means safety; it is the color of free passage in road traffic.

To be more specific:
Dark green is associated with ambition, greed, and jealousy.
Yellow-green can indicate sickness, cowardice, discord, and jealousy.
Aqua is associated with emotional healing and protection.
Olive green is the traditional color of peace.

Blue
Blue is the color of the sky and sea. It is often associated with depth and stability. It symbolizes trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven.
Blue is considered beneficial to the mind and body. It slows human metabolism and produces a calming effect. Blue is strongly associated with tranquility and calmness. In heraldry, blue is used to symbolize piety and sincerity. Blue is a masculine color; according to studies, it is highly accepted among males.

To be more specific:
Light blue is associated with health, healing, tranquility, understanding, and softness.
Dark blue represents knowledge, power, integrity, and seriousness.

Purple
Purple combines the stability of blue and the energy of red. Purple is associated with royalty. It symbolizes power, nobility, luxury, and ambition. It conveys wealth and extravagance. Purple is associated with wisdom, dignity, independence, creativity, mystery, and magic.According to surveys, almost 75 percent of pre-adolescent children prefer purple to all other colors. Purple is a very rare color in nature; some people consider it to be artificial.Light purple is a good choice for a feminine design.

To be more specific:
Light purple evokes romantic and nostalgic feelings.
Dark purple evokes gloom and sad feelings. It can cause frustration.

White
White is associated with light, goodness, innocence, purity, and virginity. It is considered to be the color of perfection.White means safety, purity, and cleanliness. As opposed to black, white usually has a positive connotation. White can represent a successful beginning. In heraldry, white depicts faith and purity.

Black
Black is associated with power, elegance, formality, death, evil, and mystery.
Black is a mysterious color associated with fear and the unknown (black holes). It usually has a negative connotation (blacklist, black humor, 'black death'). Black denotes strength and authority; it is considered to be a very formal, elegant, and prestigious color (black tie, black Mercedes). In heraldry, black is the symbol of grief.

What are linkages in the mechanism toys??

Linkages include garage door mechanisms,car wiper mechanisms,gear shift mechanisms. They are a very important part of mechanical engineering which is given very little attention by most people.

A link is defined as a rigid body having two or more pairing elements which connect it to other bodies for the purpose of transmitting force or motion.In every machine, at least one link either occupies a fixed position relative to the earth or carries the machine as a whole along with it during motion.This link is the frame of the machine and is called the fixed link.

An arrangement based on components connected by rotary or sliding interfaces only is called a linkage.These type of connections, revolute and prismatic, are called lower pairs. Higher pairs are based on point line or curve interfaces.Examples of lower pairs include hinges rotary bearings,slideways,universal couplings.Examples of higher pairs include cams and gears.

Kinematic analysis, a particular given mechanism is investigated based on the mechanism geometry plus factors which identify the motion such as input angular velocity, angular acceleration,etc.Kinematic synthesis is the process of designing a mechanism to accomplish a desired task.Here,both choosing the types as well as the dimensions of the new mechanism can be part of kinematic synthesis.

This charming toy are made in the village of Noginsk in the Sergiev Posad district of Moscow Province. The toys are hand-carved from linden wood. They operate on a pendulum mechanism:when the wooden ball is swung in a gentle circular motion,the toy will performs an action.

Here are a video of the 2nd Annual All Japan Robot American Football Competition.It was held February 18, 2007 in Yokohama, Japan.

The japan have invented another new robot!They invented a robot which can help to serve people.Not only they can serve the customer their drinks,they can even talk with the customer with simple dialogues.The robot is 130com tall,it doesn't look like a robot at all!It simplest look like a human.The new technology allows them to predict the human action,and hence they would not affect our actions.They can also differentiate the different types of drinks and serve the drinks to the customer.Lastly,they will also invite you to taste the drink.What to do when they have no battery?Do not worry,the robot will automatically went to the most nearest battery station to refill their battery.

I am going to show you all the Wooden Toy Maraca,i think most of us should have play with it before when you are still a baby.It is well finished and it has a very pleasing sound and a nice weight.It cost $14.95 AUD.I personally thinks that it is a very safe toys especially for children about 3++. The size is 20cm long,top is 6cm across.The material is wood coloured with child safe paint.

Lastly i am goin to show you all the video of the racing car mix with some computer effects.

Here are the videos of the robots in acting:

I have just found some funny Singing Lions dancing to the music:

One of the examples,the off centre wooden wheel creates an eccentric movement which causes the lever resting on it (the follower) to rise up and down.

Now,i am goin to show some Mechanical Toys:
This is a Mechanical Doll,which is made in Cromwell,Connecticut.It is the mechanism on the two-wheeled vehicle powers the walking doll and turns the wheels around, causing the figure of the boy to rock slightly and the bell to ring.