Smartphones Current Affairs - 2020
The Government of India on December 30, 2019, launched “Central Equipment Identify Register” portal to block and trace mobile phones. The web portal will operate under Department of Telecom.
The CEIR portal has been established in order to address theft, security and other concerns. The portal will also hold database of IMEI numbers of blacklisted handsets. When a phone is listed in blacklist, the wireless carriers will not allow the phone to connect to a network. It will facilitate request of blocking lost or stolen mobile phones of the citizens.
The CEIR has powers to block the usage of the phone. On the other hand, the predecessor technologies of CEIR were able to block the sim cards alone. The CEIR also has powers to access the GSMA database. GSMA is Global system of Mobile Communications. The database of GSMA holds manufacturer and model numbers.
IMEI is the International Mobile Equipment Identity is a unique number that can be found in batteries of phones. Australia was the first country to adopt IMEI. Other countries that have adopted IMEI include US, UK, India.
Tags: Central Equipment Identify Register • Department of Telecommunication • Frauds • Mobile Communications • Smartphones
The scientists at John Hopkins Applied Physics Laboratory, US, have developed Lithium-Ion batteries that can operate under extreme conditions like submersion, ballistic impact, cutting and heat. In simple lay man terms, they can operate even under fire!
The Lithium-Ion batteries that are commonly used in every household item starting from smartphones are susceptible to catastrophic fire and explosion. Because of this, many phones were banned from airlines and ships. The US Navy had prohibited the use of e-cigarettes on ships and submarines because of the danger the batteries possessed.
The Technology behind the battery
The scientists have used water-in-salt and water-in-bisalt electrolytes in the batteries. These electrolytes were incorporated in a polymer matrix to reduce water activity and elevate energy capabilities of the battery. This gives the batteries higher energies to withstand heat and pressure.
Tags: lithium • Lithium Ion Cell technology • Lithium-ion cell • Smartphones • Storage Batteries