Haptic Essay Example | Topics and Well Written Essays - 250 words - 1

Haptic - Essay Example Haptic is used in supporting cognitive tasks performance e.g. in children with low attention, mental problems and brain injury, by enhancing mental imagery and verbalization systems. Furthermore, haptic can be used in communication as it gives feedback at the point of interaction by the user (Hatzfeld and Kern 21). It also enables conveying of information in demanding environments. Haptic can also be used in tactile interfaces to help in navigation by the visually impaired and blind people (Henderson ‎and Pehoski 77). For haptic devices to be effective, there are functional and data requirements. These include reliability and uniformity so that consistent perceptual effects are obtained. Haptic devices should have sensing requirements for easy and faster input (Siciliano and ‎ Khatib 726). The sensing requirement helps in determining the state of the device. Haptic devices should have high power to weight ratio for excellent performance and good feedback. Also, to sense the user’s action, the haptic device should have high force or torque. A vending machine applies touch on a user interface for payment to be made. After payment is made, customers are provided with what they require for example a drink. Vending machines support a variety of payment methods such as coins, debit and credit cards, pay phones and online accounts such as Payoneer and PayPal. ii. Credit and debit cards provide more convenient ways of making payments as a customer does not have to worry about carrying cash or having it in the right denominations accepted by the machine. A card can be tapped or inserted into the machine to make the payment. iii. The use of pay phones is a recent development. Mobile service providers have come up with different applications that allow business transactions to be conducted using phones. This is also a convenient way of making payments without physical cash. iv. Online payment methods are increasingly being adopted in the modern

Dr. Martin Luther King Essay Example | Topics and Well Written Essays - 1250 words

Dr. Martin Luther King - Essay Example In 1957, a new organization was born. The southern Christian Leadership Conference whose aim was to achieve the civil rights of American and King was elected the chair. In the next 11 years, he led a massive campaign against segregation and racial discrimination. He traveled over six million miles, spoke over 2500 times in public events and wrote essays against racial discrimination. In 1963, Martin Luther King attracted the attention of all America by leading the Birmingham civil rights demonstrations in Alabama (Weider History 1). Consequently, the African American pressed for change. Martin Luther King Jr. through his historic speech stressed the need for Americans to live to the spirit of the Constitution. Additionally, in his dream King wanted the Americans to judge their character and not through their skin color (Bush 1). Consequently, King's dream has been achieved in his fight against social discrimination. Martin Luther King Jr. brought many achievements to the black people in the United States of America. He fought for many years in favor of civil rights in the United States. He and other civil rights activist led the famous bus boycott in Montgomery that led to change or equalization of all American citizens despite their races. If this kind of discrimination continued, then President Barack Obama could not be elected to office in the second term as the president of the United States. Additionally, the boycott prompted the government of the United States to make a legal change.