How to Buy Gold

Gold is a great investment because it maintains its value in the long term. It's an excellent hedge against inflation because its price usually rises when the cost of living increases. The price also rises when the dollar declines. Gold should be part of every investment portfolio. Read on to learnRead more≫

Find the maximum and a set of largest numbers (in scientific notation ...

I would use a combination of grep and sort : grep -o '[0-9e.-]*' file | sort -rg | head -N. The command grep -o '[0-9e.-]\+' (using the regex provided in the question) ...

Grouping hours by moment of the day - Stack Overflow

Query could look like this: SELECT CASE WHEN h >= 0 AND h <= 7 THEN 'dawn' -- including 0 ! WHEN h > 7 AND h <= 12 THEN 'morning' ...

Extract row corresponding to minimum value of a variable by group ...

Slightly more elegant: library(data.table) DT[ , .SD[which.min(Employees)], by = State] State Company Employees 1: AK D 24 2: RI E 19. Slighly less elegant than ...

ActiveRecord Find By Year, Day or Month on a Date field - Stack ...

Mutuelinvestor 2,780○44 gold badges○3333 silver badges○6262 bronze ... You don't want find_by_date_column as that will give at most one result. For the year, month, and day queries you'd want to use the extract SQL function: ... or do all your logic in Ruby (insane for any non-trivial amount of data).

Getting last day of the month in a given string date - Stack Overflow

Java 8 and above. By using convertedDate.getMonth().length(convertedDate.isLeapYear()) where convertedDate is an instance of LocalDate . String date ...

How Much Gold Has Been Mined? | World Gold Council

Jun 21, 2020 ... Over 187000 tonnes of gold has been mined, most of which still exists today. Learn how much gold has become jewellery and the future of gold ...

The world's biggest gold mines: Top ten - Mining Technology

Jan 30, 2020 ... South Deep gold mine has the largest gold deposits in the world. ... 2.69 million ounces (Moz) of gold in 2018, milling 178,100t of ore a day. ... The extracted ore is processed at two nearby plants with a combined annual ...

Gold mining in the United States - Wikipedia

Gold mining in the United States has taken place continually since the discovery of gold at the ... The largest gold producer is the Fort Knox mine, a large open pit and cyanide leaching operation in the Fairbanks ... Small amounts of gold were mined commercially in North Eastern Florida during the late 19th Century, at the ...

Gold mining - Wikipedia

Gold mining is the resource extraction of gold by mining. Contents. 1 History; 2 Statistics ... The second-largest producer, Australia, mined 289.0 tonnes in the same year, ... Large copper mines, such as the Bingham Canyon mine in Utah, often recover considerable amounts of gold and other metals along with copper.

How to Buy Gold

Gold is a great investment because it maintains its value in the long term. It's an excellent hedge against inflation because its price usually rises when the cost of living increases. The price also rises when the dollar declines. Gold should be part of every investment portfolio. Read on to learnRead more≫

Find the maximum and a set of largest numbers (in scientific notation ...

I would use a combination of grep and sort : grep -o '[0-9e.-]*' file | sort -rg | head -N. The command grep -o '[0-9e.-]\+' (using the regex provided in the question) ...

Grouping hours by moment of the day - Stack Overflow

Query could look like this: SELECT CASE WHEN h >= 0 AND h <= 7 THEN 'dawn' -- including 0 ! WHEN h > 7 AND h <= 12 THEN 'morning' ...

Extract row corresponding to minimum value of a variable by group ...

Slightly more elegant: library(data.table) DT[ , .SD[which.min(Employees)], by = State] State Company Employees 1: AK D 24 2: RI E 19. Slighly less elegant than ...

ActiveRecord Find By Year, Day or Month on a Date field - Stack ...

Mutuelinvestor 2,780○44 gold badges○3333 silver badges○6262 bronze ... You don't want find_by_date_column as that will give at most one result. For the year, month, and day queries you'd want to use the extract SQL function: ... or do all your logic in Ruby (insane for any non-trivial amount of data).

Getting last day of the month in a given string date - Stack Overflow

Java 8 and above. By using convertedDate.getMonth().length(convertedDate.isLeapYear()) where convertedDate is an instance of LocalDate . String date ...

How Much Gold Has Been Mined? | World Gold Council

Jun 21, 2020 ... Over 187000 tonnes of gold has been mined, most of which still exists today. Learn how much gold has become jewellery and the future of gold ...

The world's biggest gold mines: Top ten - Mining Technology

Jan 30, 2020 ... South Deep gold mine has the largest gold deposits in the world. ... 2.69 million ounces (Moz) of gold in 2018, milling 178,100t of ore a day. ... The extracted ore is processed at two nearby plants with a combined annual ...

Gold mining in the United States - Wikipedia

Gold mining in the United States has taken place continually since the discovery of gold at the ... The largest gold producer is the Fort Knox mine, a large open pit and cyanide leaching operation in the Fairbanks ... Small amounts of gold were mined commercially in North Eastern Florida during the late 19th Century, at the ...

Gold mining - Wikipedia

Gold mining is the resource extraction of gold by mining. Contents. 1 History; 2 Statistics ... The second-largest producer, Australia, mined 289.0 tonnes in the same year, ... Large copper mines, such as the Bingham Canyon mine in Utah, often recover considerable amounts of gold and other metals along with copper.

Create a day-of-week column in a Pandas dataframe using Python ...

Pandas 0.23+. Use pandas.Series.dt.day_name() , since pandas.Timestamp.weekday_name has been deprecated: import pandas as pd df ...

Regression with Date variable using Scikit-learn - Stack Overflow

Here are some features that can be extracted from a date: ... to an ordinal i.e. an integer representing the number of days since year 1 day 1.

MySQL Query GROUP BY day / month / year - Stack Overflow

GROUP BY YEAR(record_date), MONTH(record_date). Check out the date and time functions in MySQL.

SQLAlchemy - Querying with DateTime columns to filter by month ...

Jul 22, 2018 ... LeetCoder 293○11 gold badge○22 silver badges○99 bronze badges ... Basically, instead of trying to filter on each component (day, month, year) ... month, day, and year out of my DATETIME column and then filter on that extracted value". ... and I think will help you get the most value out of SQLAlchemy.

Find records with a date field in the last 24 hours - Stack Overflow

You simply select dates that are higher than the current time minus 1 day. SELECT * FROM news WHERE date >= now() - INTERVAL 1 DAY;.

10 Countries That Produce the Most Silver - Investopedia

Mar 8, 2020 ... Russia, twice as large as the United States, produced the fourth-largest amount of silver. Russia's silver production remained stable from 2018 ...

Mining Techniques of the Sierra Nevada and Gold Country

... using a flat dish called a batea. Gold panning was slow even for the most skillful miner. On a good day, one miner could wash about 50 pans in the usual 12-hour workday and obtain a small amount of gold dust. ... down to a sluice box. As with the Long Tom, gold was finally removed from the sluice boxes by panning.

Gold: The Most Precious of Metals (Part 3) - FocusEconomics

Because of gold's history as a standard of value in monetary systems, it has left ... On 5 February, U.S. stock markets recorded the worst trading day in over six years. ... Most of the gold mined in China stays within its borders to produce jewelry.

Gold facts and statistics - Only Gold

The gold market amounts to billions of dollars every day, and no one can 'set' the price. ... Yes, the larger gold bars such as 10 ounce, kilogram (32.15 oz), and 400 ounce ... And gold is often extracted in minute quantities per ton of dirt or ore.

Top 10 Gold-Producing Countries - Forbes

Jun 13, 2018 ... But how much gold is the world digging up each year and what countries ... of global gold producers by a wide margin, extracting 131 tonnes more than ... Below are more details on the top 10 countries with the largest gold ...

Group query results by month and year in postgresql - Stack Overflow

select to_char(date,'Mon') as mon, extract(year from date) as yyyy, sum("Sales") as "Sales" from yourtable group by 1,2. At the request of Radu, ...

Fastest way to find second (third...) highest/lowest value in vector or ...

Use the partial argument of sort() . For the second highest value: n <- length(x) sort(x,partial=n-1)[n-1].

Return just the last day of each month with SQL - Stack Overflow

In this case use a method to reduce a datetime to its date value before doing ... Tomalak 288k○5757 gold badges○463463 silver badges○571571 bronze badges ... In SQL Server, this is how I usually get to the last day of the month relative to an ... I also wanted the Maximum Date for the Current Month.

Is there a way to get Bing's photo of the day? - Stack Overflow

I think the best way is immitating the way they do it themselves through their AJAX calls. They call this URL and extract the information through ...

Django - Time aggregates of DatetimeField across queryset - Stack ...

Add another integer field to your model that contains only the hour of the day extracted from the happened_datetime . When creating/updating a ...

Global Operations - Barrick Gold Corporation - Operations

2020 Full Year Guidance. Gold. 4.6 - 5.0. Million Ounces ... our significant assets across Nevada to create the single largest gold-producing complex in the world ...

Gold discovered in the Yukon - HISTORY

In 1896, another prospector, Robert Henderson, told Carmack of finding gold in a ... They staked their claim the following day. ... Few of these would find what they were looking for, as most of the land in the region had already been claimed.

World's 10 Largest Gold Mines by Production | INN

Jul 31, 2019 ... The world's largest gold mines come in all shapes and sizes. ... Nevada production is expected to be 1.5 million ounces in 2019. ... These deposits are formed when minerals are mined from their source, and then transported ...

South Africa's gold industry, like its economy, is crumbling - The ...

Mar 7, 2016 ... A dangerous “second gold rush” for South Africa's most desperate men. ... DRDGOLD, which shuttered the mine that Jeremiah now sneaks into every day. ... for a major company, it was prohibitively expensive and dangerous to extract. ... its value rising in times of economic uncertainty — South African gold ...

Who really owns most of the world's gold? - MSN.com

Feb 19, 2019 ... Who's stockpiling gold? The value of global currencies used to be directly linked to the value of gold. The so-called Gold Standard is no longer ...

Updating postgreSQL column with EXTRACT function (More than ...

I don't see the need for this sub-select, just update the column: UPDATE table SET day = EXTRACT (DAY FROM "timestamp");. The real ...

Extracting just Month and Year separately from Pandas Datetime ...

If you want new columns showing year and month separately you can do this: df['year'] = pd.DatetimeIndex(df['ArrivalDate']).year df['month'] = pd.

Get value of day month from Date object in Android? - Stack Overflow

Jun 19, 2013 ... import android.text.format.DateFormat; String dayOfTheWeek = (String) DateFormat.format("EEEE", date); // Thursday String day = (String) ...

Which is the fastest way to extract day, month and year from a given ...

In 0.15.0 you will be able to use the new .dt accessor to do this nice syntactically. In [36]: df = DataFrame(date_range('20000101' ...

How to extract week number in sql - Stack Overflow

After converting your varchar2 date to a true date datatype, then convert back to varchar2 with the desired mask: to_char(to_date('01/02/2012' ...

The Mercury Problem in Artisanal and Small‐Scale Gold Mining

Feb 5, 2018 ... In this practice, elemental mercury is used to extract gold from ore as an amalgam. ... unfortunately still a widespread technique in present‐day artisanal gold mining. ... As ASGM is the largest source of mercury pollution worldwide, ... up to 14 % gold by mass, so significant amounts of gold are lost in tailings ...

Hutti Gold Mines to double production of gold in two years - The ...

Sep 24, 2019 ... The company is setting up new shafts and ball mills that would help increase gold extraction. The firm has invested Rs 420 crore for its expansion ...

What are the largest gold mines in South Africa? - NS Energy

May 2, 2019 ... The economy in South Africa has its foundation in the gold trade, with a number of prolific mines still in operations today despite a decline in reserves. ... up to 8,000 tonnes of ice every day in order to cool wall rock temperatures. ... Most of its stopes are mined using traditional methods and practices, but it ...

Making mercury history in the artisanal & small-scale gold mining ...

Sep 28, 2017 ... About 15 million of small artisanal miners around the world risk their lives every day, not just ... The vast majority of artisanal miners use mercury to extract gold from ore. ... The disease's most notable symptoms are convulsions, loss of ... GEF funding to the GOLD initiative amounts to $45.2 million, and is ...

Going for gold: can small-scale mines be mercury free?

Jun 27, 2018 ... Agriculture is the most visible industry, and the primary source of jobs ... underground or handle mercury every day – have few other options. ... Of all the gold extracted around the world each year, 15 per cent ... The final product is weighed and sold to middlemen, who pay the miners far below market value.