ALUMINIUM BEVERAGE CAN -AN ENGINEERING MARVEL

The aluminium cans that you use to drink not only contains juices and coke but so much science

15000 cans are manufactured in one-second worldwide. A light and strong container.
We can have spherical containers like fruits. It requires the least raw material. (Sphere is the only shape which has maximum volume and minimum surface area). But it is difficult to manufacture spheres. And it has only 74% packing efficiency. That means 26% of space in a box goes waste.
Next, we can think of the cuboid (rectangle area). Here edges are sharp and weak. And the packing efficiency is also not good.
Finally, we come to cylindrical containers. We can rapidly manufacture them. The packing efficiency is 91%. The cylinders have a curved surface. The curved surfaces always have more strength than flat surfaces.

The bottom of the can is always "domed". Because of 1. The arched surface gives strength. 2. The semi-spherical surface requires less material than a flat surface.
To open, a lever arrangement is provided on the top. Lift, press, and Drink.

Along with beverages, some gases like carbon dioxide or nitrogen is filled up. Hence, twice the atmospheric pressure is there inside the can. The pressure reinforces the strength of the wall of the can. A filled coke can actually bear and withstand the weight of a man. The wall is only .75 microns(0.075mm) thick, Or it is as thick as human hair. (one gram saved in the manufacturing of cans will save 200000 tonnes of aluminium globally per annum)
Today, 70% of recyclable materials are used in the production of cans. Also, plastic is being replaced by aluminium foils now.
Next time, when you drink from a can, appreciate the engineering.
---------------------------------------------------------------------------------

Comments

Your heart -you do not know

Size and Location: The human heart is roughly the size of a clenched fist and is located slightly to the left of the center of the chest. Despite its relatively small size, the heart plays a crucial role in pumping blood throughout the entire body. Heartbeat Variability: The heart does not beat at a constant rate. The interval between heartbeats can vary, and this variability is considered a sign of a healthy heart. Factors such as breathing, emotions, and physical activity influence the heartbeat. Electrical Conduction: The heart's contractions are controlled by electrical impulses. The sinoatrial (SA) node, often called the "natural pacemaker," generates electrical signals that regulate the heartbeat and coordinate the pumping of blood. Blood Pumping Capacity: On average, the human heart pumps about 2,000 gallons (or 7,570 liters) of blood each day. Over a lifetime, this amounts to pumping enough blood to fill several Olympic-sized swimming pools. Heart Chambers and V...

THE WORK HORSE "="

One cannot think of a mathematical step without 'is equal to ' . It balances right hand side and left hand side. It aids simplification and manipulation of a mathematical expression. example: 2(A+B) = C 2A+2B = C 2A = C-2B A = C-2B/ 2 In an electronic calculator, the pressing of ' = " sign executes an asthmatic expression or simply calculates. In computer languages, it plays very important role. A = B When a computer looks at this expression, the value stored in the location named B is just transferred to the storage named A . After execution both A and B will have the same value an...

How does your smart phone detect motion, steps, rotation, and location?

How it works-1 An accelerometer in a smartphone is a microelectromechanical system (MEMS) device that measures acceleration and tilt. It works by detecting changes in motion by measuring the vibration or acceleration of the device. The accelerometer consists of a small mass suspended on a spring inside a sealed chamber. When the device is subjected to acceleration, the mass moves relative to the device, causing a change in capacitance that can be measured and processed by the smartphone's hardware. The accelerometer measures acceleration in three dimensions (x, y, and z) and provides data that the smartphone's software can use to determine the device's orientation, detect motion, and track changes in velocity and acceleration. The accelerometer is used for a variety of purposes in a smartphone, including screen rotation, motion tracking for games and fitness apps, and detecting the position of the device for navigation and location services. Additionally, it can be used t...

sciencecapsules

Search This Blog