The origins of the underlying data structure has everything to do with ensuring a document or set of documents can be proved published in a particular form at a certain time. In this context, a document could be an image, audio file, movie, or other computer file. This is incredibly general and adaptable to many different circumstances.
Generating trust from nothing is one of the first major feats blockchain is hyped to do, but blockchain itself doesn’t generate trust out of nothing. It actually derives from the system in which blockchain is used. A blockchain is actually just a chain of blocks of data having a particular structure which ensures its self-integrity, it can only be used to guarantee the data written to the chain was done so in a certain way. Multiple blockchains can be created with the same data up to a certain point — in fact, Bitcoin does this all the time in the mining process and the fork stays around until a majority of nodes choose the fork which grows longest.
The price of bitcoin from around 2015 until mid-October 2017, tracks with the price of electricity in China. From August and October, it correlates with the average US cost of energy. In November, it goes on a space walk to a new energy level. By the start of December, it moves with the average cost of electricity in NYC.
Imagine being on Mars, giving a presentation at a conference on Earth with real time audio and video (or VR even). All it might possibly require is a sufficient amount of planning to store separated entangled photon pairs in both locations and proper timing of a signal to initiate the protocol a suitable time before the presentation. This means we’d still experience a delay, but it would only happen before the stream starts — like a sort of quantum buffering. Of course, this is my imagination running wild. Science will still have see if it’s even possible.
This is a general overview of how to design a solar power system, preferably a portable one. This takes a look at the power density disparities between gas powered generators and solar power systems. It also provides an overview of energy requirements for a few common tools, appliances, and home health needs. It then guides the reader through the calculations and decisions needed in order to build a proper solar power system.
PHP 5.4.0 will arrive soon. The PHP team is working to bring to some very nice presents to PHP developers. In the previous release of 5.3.0 they had added a few language changes. This version is no different. Some of the other changes include the ability to use DTrace for watching PHP apps in BSD variants (there is a loadable kernel module for Linux folks). This release features many speed and security improvements along with some phasing out of older language features (Y2K compliance is no longer optional). The mysql extensions for ext/mysql, mysqli, and pdo now use the MySql native driver (mysqlnd). This release also improves support for multibyte strings.
A few weeks ago, I started looking into the possibility of functional programming in PHP. I stumbled across the capability of defining anonymous functions — starting with PHP 5.3.0. These can be used to define closures with bound variables and also for partial application or currying. Higher order functions can also be defined.
What geoloqi needs is a method of offsetting the current location which statistically cannot be tricked or munged into reproducing one’s current location. This is the major constraint: How does one ensure that a dedicated (stalker/zombie/attacker/real life spamer/salesman) cannot reproduce one’s location, given the algorithm and a set of data requested from the public API for the map center?
Last year I was working on deriving a matrix based method for translating and rotating various polygons around pentagons. In the process of this I got sidetracked and started to look into the golden mean. People swoon over how it defines the most beautiful rectangles! It crops up inside pentagons and various 3-D polyhedra. It’s glorious. It’s just like how a circle has the ratio pi, and it has a name too: phi. I’ll be writing it down in Greek from here on out (it’s originally from there anyway). So learn this shape: \varphi Sometimes people write it out like this: \phi Either way it’s just a variable name. Sometimes it refers to something other than the golden mean, but here it’s the golden mean. As I found powers of \varphi , I kept noticing certain values popping up in sequence. It turns out that one can find powers of \varphi through the following formula: