How is the NHS tracing app different to one made by Apple?
The NHS tracing app is built using NHS-developed software, which has been designed to provide confidential accees to health data and contact tracing information. It is powered by national contact tracing infrastructure and has been tested and evaluated to be as secure as possible.
The Apple app, on the other hand, is powered by Apple's Exposure Notification platform which uses Bluetooth to determine when two phones come into close contact. This places more of an emphasis on individual user privacy and does not involve access to any health data.
How long does it take to charge an electric car?
It depends on the specific model of electric car, and the type of charger used. Most electric cars can be fully charged in 8-12 hours, with a standard home charger. If a faster charger is used, the time could be cut to around 2-4 hours.
What is the difference between Pel and TWA exposure limits?
PEL stands for Permissible Exposure Limits, which are set by the Occupational Safety and Health Administration (OSHA), and are primarily used in the United States. They are derived from an 8-hour average and are considered to be the maximum concentration of a toxic substance in an employee's workplace that may be tolerated without significant risk. In contrast, TWA stands for Time-Weighted Average, which is set as a one-hour average. While both metrics measure concentration of toxic substances, TWA exposure limits are generally considered to be more stringent than PELs, because they are established to protect against short-term exposure and single large spikings of toxins.
How do you separate nitrogen from air?
Nitrogen is separated from air by a process known as fractional distillation of liquid air. In this process, air is cooled until it liquifies, and then it is allowed to warm up gradually. During this process, the different components of air (nitrogen, oxygen, argon, etc.) condense at different temperatures. The nitrogen can then be collected and isolated.
Is there a termination charge for Google Cloud?
Google has two types of billing for Cloud Platform services. The first is "pay as you go," which does not include a termination charge. The second type of billing contemplates a monthly contract including a minimum commitment, and this could include an early termination fee if the customer terminates the contract before the end of the commitment period.