Time to Understand Blockchain

What is blockchain? A blockchain is a digital scaffolding for transactions.  We've heard a lot about it recently in relation to Bitcoin. Blockchain was developed about 10 years ago to scaffold cryptocurrency transactions.  Investopedia explains blockchain (referring to cryptocurrencies) as 'a digitized, decentralized, public ledger of all cryptocurrency transactions. Constantly growing as "completed" blocks (the most recent transactions) are recorded and added to it in chronological order, it allows market participants to keep track of digital currency transactions without central recordkeeping. Each node (a computer connected to the network) gets ...

Wikispaces is Closing

Wikispaces, a part of TES, announced last week that the site will close starting 31 July 2018. 'Sparse, scale-free network' flickr photo by sjcockell https://flickr.com/photos/sjcockell/8425835703 shared under a Creative Commons (BY) license Why is Wikispaces closing? It costs too much: 'Over the last twelve months we have been carrying out a complete technical review of the infrastructure and software we use to serve Wikispaces users. As part of the review, it has become apparent that the required investment to bring the ...

IA ICT requirements – tip 1

Part of the 'new' - we have been using them for three years!  ;-) - IA criteria is that your students need to demonstrate a range of ICT skills. One of these skills is to use a database - the link below takes you to the National Institute of Science and Technology (NIST) online database. This can be used in a number of ways:   The database can be found here: http://webbook.nist.gov/chemistry/form-ser.html You could ask your students to look up a homologous series of say, ...