The engineering societies such as AAES, ABET, NSPE, IEEE, and AICTE have framed these codes of ethics which are helpful to engineers to strengthen the moral issues on their work. The codes of ethics play at least eight important roles such as the following.Serving and Protecting the PublicEngineers are in a responsible position where trust and trustworthiness, both are essential. A code of ethics functions as a commitment to the profession as a whole that engineers will serve the public health, safety, and welfare. All the remaining ones contribute to this function in some or other way.GuidanceCodes are written in ... Read More

Coursera is a Californian based company that provides online education which is founded by Andrew Ng and Daphne Koller. They offer more than 2, 000 online courses, degrees, and specializations in a wide variety of subjects like engineering, medicine, computer science, mathematics, social sciences, data sciences, humanities, biology, digital marketing etc. for which there are more than 28 million registered users. Coursera works with universities and other organizations to authenticate the courses offered. Such courses are called MOOC (Massive Open Online Course) where you get everything online.Trending and WorthyThe Coursera courses are a great resource for students and working professionals ... Read More

Whenever a current carrying conductor is placed in a magnetic field, it experiences a force. The relation between these three is stated by Fleming’s left-hand rule. To understand this rule, the thumb, middle and index fingers are placed in perpendicular to each other.Thumb RuleImagine a current carrying conductor placed in-between a horseshoe magnet. This magnet produces some magnetic field which will be in the direction indicated by the forefinger or Index finger. The current passing through the conductor will be in the direction of the middle finger. This conductor experiences a force which is indicated in the direction of thumb. ... Read More

A helical antenna is another type of wire antenna, which is widely used for a higher range of broadband VHF and UHF applications. The frequency range of operation of the helical antenna is around 30MHz to 3GHz.Helical antenna or helix antenna is the antenna in which the conducting wire is wound in a helical shape and connected to the ground plate with a feeder line. It is the simplest antenna which provides circularly polarized waves and used in extra-terrestrial communications in which satellite relays etc., are involved.It consists of a helix of thick copper wire or tubing wound in the ... Read More

In Radio communication systems, we use wireless electromagnetic waves as the channel. The antennas of different specifications can be used for these purposes. The mode of propagation of electromagnetic waves in the atmosphere and in free space may be divided into the following three categories:The line of sight (LOS) propagationGround wave propagationSkywave propagationIn ELF (Extremely low frequency) and VLF (Very low frequency) frequency bands, the Earth, and the ionosphere act as a wave-guide for electromagnetic wave propagation. In these frequency ranges, communication signals practically propagate around the world. The channel bandwidths are small. Therefore, the information is transmitted through these ... Read More

The lens antenna uses a curved surface for the transmission or reception. Lens antennas are made up of glass, where the converging and diverging properties of the lens are followed. These are used for higher frequency applications greater at 3000 MHz and above.Working PrincipleIf a light source is assumed to be there at a focal point of a lens, which is at a focal distance from the lens, then the rays get through the lens as collimated or parallel rays on the plane wavefront.The rays that pass through the center of the lens are less refracted than the rays that ... Read More

Teenage is the period when the kids are more focused on the outside world and less inclined towards education. However, it’s on the parents how to manage this stage of a metamorphosis of your teens. If you want to help increase your child’s focus on education, one of the best ways would be to involve them in fun educational activities.My elder cousin has a 15-year-old son and I loved the activities that she tried with him. While he enjoys the activities thoroughly, he is more informed on a lot of other things that they won’t learn in school.Draft A Letter ... Read More

It is a common question many have in mind. It is always important to ensure your safety by checking whether your house, office or workplace is properly earthed or not.The three-pin female plug pin present in the circuit board has three holes in it called as Phase (P), neutral (N) and Earth (E), as shown in the following picture.Take a light bulb holder, connected with two wires i.e., for positive and negative terminals of the bulb. Now insert one of the wires in phase and the other in neutral. The bulb glows indicating the power supply.Take out the wire from ... Read More

It’s Finland. Again? Of course, Finland has been the country that tops the world education system since 2000. This country has been focusing on improving its education system year by year to meet the standards.If you think that the Finn students get high ranks in Math and science exams or if they are being the world-class business officials, then you are wrong!! Finland education system helps students to be better thinkers, learners, and human beings.What is the System like?No student in Finland is forced to do the study. The Finn children are admitted to schools at the age of 7years. ... Read More

A good teacher teaches the children putting his best efforts, whereas a better teacher evaluates the effects of his teaching on his students and tries to improve his way of teaching. End of the day, improvement in the status of the student and his learning is more important.An improved process called as Visible Learning was made by John Hattie to help the teachers evaluate their teaching process. It says, “Know Thy Impact” by showing what the teachers have taught and what did the students learn, which enables to understand the gap so as to bridge it.Visible Learning is the concept ... Read More