Home FDM 3d printers are much more affordable than the professional grade ones that can easily reach over $20,000. The quality isn't -as- good as the professional grade ones, but it's getting there.
They typically use two types of plastic filament, ABS (think Lego plastic) and PLA (corn-based plastic), both of which are available in spools of multiple colors. There's multiple places to get spools of these plastics on the internet.
Also, Thingiverse. People make things and upload them here for you to make as well. Site is run by Makerbot so the files will all work with their models of printers but they can typically be used with other models as well.
Check this out for a few models to look at. There's many more models of home 3d printers too. :)
If you're looking into getting into 3d printing, be prepared to drop anywhere from maybe $500-$2000 or so for your first printer, some of which will come pre-assembled and ready to go, for a price. There's a pretty big price range for these printers, it totally depends on which one you want.
The idea of the patent system in itself is actually quite elegant. Government grants a temporary monopoly in exchange for the public disclosure of an invention. Everyone wins! The person issued the patent can more easily profit from their invention because they can work in the open. Society likewise benefits, no more secret guilds locking up knowledge, now everyone can see how it's done (and apply it once the monopoly expires).
As a social contract this really makes sense. The problem is that a lot of the patents being thrown around today only really satisfy half of that contract. A temporary monopoly is indeed granted, but the disclosure received in exchange is worthless information. I say it is worthless because no one actually needs to read that disclosure to figure out how to do it themselves with basically no effort.
This recently leaked document describes modern COINTELPRO techniques for manipulating Internet forums. Observant readers may have noticed these techniques being used in familiar online forums. Part of modern media literacy includes understanding these techniques. This document contains information about:
1. COINTELPRO Techniques for dilution, misdirection and control of a internet forum
2. Twenty-Five Rules of Disinformation
3. Eight Traits of the Disinformationalist
4. How to Spot a Spy (Cointelpro Agent)
5. Seventeen Techniques for Truth Suppression
> The rest of this article describes the specifics of creating a JWT, signing the JWT, forming the access token request, and handling the response. Libraries should abstract these specifics from your application. Again, developers are strongly encouraged to attempt to use an existing library rather than building your own support for server-to-server interactions.
Imagine a cocktail party of political party workers who are uniformly distributed across the floor, all talking to their nearest neighbours. The ex-Prime- Minister enters and crosses the room. All of the workers in her neighbourhood are strongly attracted to her and cluster round her. As she moves she attracts the people she comes close to, while the ones she has left return to their even spacing. Because of the knot of people always clustered around her she acquires a greater mass than normal, that is, she has more momentum for the same speed of movement across the room. Once moving she is harder to stop, and once stopped she is harder to get moving again because the clustering process has to be restarted. In three dimensions, and with the complications of relativity, this is the Higgs mechanism.
Before client sends verify receipt to developer server, the receipt data can be recorded and replayed to developer server,
suppose the receipt data is <receipt-something>, it's verified, and buy transaction has finished.
add a space to receipt data <receipt-something><space>
submit to developer server again
developer server will first base64 the <receipt-something>, with a trailing space, the wrap it into a JSON object like {'receipt-data': <receipt-something><space>}, then send it to https://buy.itunes.apple.com/verifyReceipt
apple server will return status = 0
now you can buy IAP stuff using the same receipt over and over and over again.
Published on Jun 5, 2012 by Moore Mandy
We are group of Chinese students study media in the UK,we love pandas and our hometown,so we made this video because we saw panda cabs running in London, We spent two days to make this non-commercial video. We love Kate respect Royal family.
Samsung, LG's key display technologies leaked by Israeli firm
SEOUL, June 27 (Yonhap) -- Key technologies to manufacture advanced flat-panel displays at Samsung Mobile Display and LG Display have been leaked by an local unit of an Israeli company, local prosecutors said Wednesday, raising concerns the leakage could pose a major threat to the national interest.
The Seoul Central District Prosecutors' Office indicted under physical detention three employees at the local unit of an Israeli inspection equipment supplier, including a 36-year-old man surnamed Kim, on charges of leaking key local technologies used to produce active-matrix organic light-emitting diode (AMOLED) displays and white organic light-emitting diode (White OLED) displays.
They also indicted without physical detention three other employees and the local unit, the prosecutors said, without identifying the Israeli firm.
According to the prosecution, the indicted employees photographed circuit diagrams of yet-to-be-released 55-inch AMOLED television panels when they were let into Samsung and LG's manufacturing factories to check defects of inspection equipment from November of last year to January of this year.
They stored the images on portable memory cards and slipped them into their shoes, belts and wallets to avoid suspicion, prosecutors said.
AMOLED displays have a faster response time then their passive-matrix OLED counterparts and are more power-efficient, and the advantages make them well suited for growingly popular portable electronics devices. Samsung and LG are by far the leading makers of AMOLED displays, for which the global market is estimated to be worth 90 trillion won (US$77.8 billion). South Korea rigorously prohibits leakage of the technologies as it tags them as the nation's core industrially strategic tech.
Prosecutors said the stolen information was likely relayed to the Israeli headquarters and Chinese and Taiwanese display-making rivals, including the biggest Chinese panel manufacturer BOE.
"It is very likely that the stolen technologies have been given by the Israeli firm to foreign rivals," a prosecution official said. "This may expectedly deal a massive economic blow to the entire nation and can cause a sea change in the landscape of the global display market."
According to industry watchers, Samsung spent nearly 1.4 trillion won in developing its AMOLED technologies with LG funneling nearly 1.3 trillion won into its research and development.
Prosecutors pledged to launch a probe into the Israeli headquarters to prevent further tech leakages.
SELECT DISTINCT v.fname, v.lname, i.year, i.location, i.report_file
FROM Incident AS i
LEFT JOIN V(ictim?)... -- presumably v.incident_id = i.id
LEFT JOIN Keyword AS k ON k.incident_id = i.id
WHERE i.year BETWEEN 1947 AND 1966
AND i.type = 'HOMICIDE'
AND v.sex = 'F'
AND i.status = 'UNSOLVED'
AND ...
OR v.fname IN ('Mari', 'Magda')
OR SUBSTR ...
AND (k.keyword IN ('rape', 'decapitation', 'dismemberment', 'fire', 'altar', 'priest', 'prostitute')
...
AND SUBSTR(v.fname, 1, 1) = 'R' AND SUBSTR(v.lname, 1, 1) = 'L');
+--------+---------+------+-----------+----------------------------------+
| fname | lname | year | location | report_file |
+--------+---------+------+-----------+----------------------------------+
| Anna | Wedin | 1956 | Mark | FULL POLICE REPORT NOT DIGITIZED |
| Linda | Janson | 1955 | Mariestad | FULL POLICE REPORT NOT DIGITIZED |
| Simone | Grau | 1958 | Goteborg | FULL POLICE REPORT NOT DIGITIZED |
| Lea | Persson | 1962 | Uddevalla | FULL POLICE REPORT NOT DIGITIZED |
| Kajsa | Severin | 1962 | Dals-Ed | FULL POLICE REPORT NOT DIGITIZED |
+--------+---------+------+-----------+----------------------------------+
The geography of supply chains will change. An engineer working in the middle of a desert who finds he lacks a certain tool no longer has to have it delivered from the nearest city. He can simply download the design and print it.
关于制造业 vs 服务业:
They spend billions backing the new technologies which they, in their wisdom, think will prevail. And they cling to a romantic belief that manufacturing is superior to services, let alone finance.
The lines between manufacturing and services are blurring. Rolls-Royce no longer sells jet engines; it sells the hours that each engine is actually thrusting an aeroplane through the sky.