Thursday, March 30, 2017

SpaceX Rocket reused

Used SpaceX Rocket Launches Satellite, Then Lands in Historic 1st Reflight

cloud big data: Amazon Athena, Facebook Presto, Azure HDInsight

Amazon Athena FAQs – Amazon Web Services (AWS)

"Amazon Athena is an interactive query service that makes it easy to analyze data in Amazon S3 using standard SQL. Athena is serverless, so there is no infrastructure to setup or manage, and you can start analyzing data immediately. You don’t even need to load your data into Athena, it works directly with data stored in S3. To get started, just log into the Athena Management Console, define your schema, and start querying. 

Amazon Athena uses Presto with full standard SQL support and works with a variety of standard data formats, including CSV, JSON, ORC, Apache Parquet and Avro. While Amazon Athena is ideal for quick, ad-hoc querying and integrates with Amazon QuickSight for easy visualization, it can also handle complex analysis, including large joins, window functions, and arrays.

Amazon Athena helps you analyze data stored in Amazon S3."

What is Presto? – Amazon Web Services (AWS)

Presto | Distributed SQL Query Engine for Big Data

"Presto is an open source distributed SQL query engine for running interactive analytic queries against data sources of all sizes ranging from gigabytes to petabytes."

"HDInsight is the only fully-managed cloud Hadoop offering that provides optimized open source analytic clusters for Spark, Hive, MapReduce, HBase, Storm, Kafka, and R Server backed by a 99.9% SLA."

Most efficient car: Hyundai Ioniq

2017’s Top Ten Tech Cars: Hyundai Ioniq - IEEE Spectrum
Hyundai Ioniq

"The most energy-efficient car in America isn’t a Tesla, Toyota, or even the remarkable Chevrolet Bolt. It’s a Hyundai. With a range of 200 kilometers (124 miles), the all-electric Ioniq comes nowhere near the Bolt’s astounding 383 km (238 miles). But the Hyundai’s gasoline equivalent of 1.73 liters per 100 kilometers (136 mpge) tops all current EVs.
Ioniqs match the slippery 0.24 drag coefficient of the Tesla Model S, making them the most aerodynamic models on U.S. roads.
Hyundai is experimenting in California with a way to lure buyers from conventional cars: a cellphone-style subscription plan. It bundles unlimited mileage, charging costs, scheduled maintenance, and replacement of worn-out items into a single monthly payment."

The New Ioniq - One Car Three Options | HyundaiUSA