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GineersNow Engineering Magazine November 2016 Issue No 009

GineersNow Engineering Magazine November 2016 Issue No 009 Caterpillar Inc: A look at the company's social impact. Exclusive interview with Jean Savace, Vice President and Chief Technology Officer of Caterpillar Inc. Exclusive: Mining industry, social good, philanthropy, CSR, social impact, social innovation. Special Feature Stories: HVACR, Oil & Gas, Construction, Heavy Equipment, Machinery, Tools, Civil Engineering, Mechanical, Electrical, Plumbing, MEP, Water, Wastewater, Renewables, Energy, Petroleum, Heavy Equipment, Rental Equipment, Contractors, EPC. Country Focus: United States, Canada, United Arab Emirates, Saudi Arabia, Qatar, Bahrain, Kuwait, Oman, United Kingdom, Singapore, Hong Kong, Philippines, Malaysia, Indonesia, India, Australia More engineering stories at https://www.gineersnow.com/topics/magazines

GineersNow Engineering Magazine November 2016 Issue No 009

Caterpillar Inc: A look at the company's social impact. Exclusive interview with Jean Savace, Vice President and Chief Technology Officer of Caterpillar Inc.

Exclusive: Mining industry, social good, philanthropy, CSR, social impact, social innovation.

Special Feature Stories: HVACR, Oil & Gas, Construction, Heavy Equipment, Machinery, Tools, Civil Engineering, Mechanical, Electrical, Plumbing, MEP, Water, Wastewater, Renewables, Energy, Petroleum, Heavy Equipment, Rental Equipment, Contractors, EPC.

Country Focus: United States, Canada, United Arab Emirates, Saudi Arabia, Qatar, Bahrain, Kuwait, Oman, United Kingdom, Singapore, Hong Kong, Philippines, Malaysia, Indonesia, India, Australia

More engineering stories at https://www.gineersnow.com/topics/magazines

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25 AWESOME THINGS YOU<br />

DIDN’T KNOW ABOUT GOLD<br />

by Cielo Panda<br />

Gold was used as a currency of choice in the past, but even though it isn’t used as currency anymore, it still<br />

retains its value. Here are 25 awesome things you didn’t know about gold.<br />

Gold is one of the substances<br />

that are equated with<br />

extreme value. Have you<br />

ever wondered why? Why is<br />

gold considered one of the<br />

most valuable metals in the<br />

universe? One of the reasons<br />

could be because it’s one of<br />

the rarest metals on earth,<br />

but there are other metals<br />

that are even rarer. So what’s<br />

the deal? Well, out of all<br />

the rare elements like silver<br />

and platinum, gold has one<br />

distinction that makes it<br />

stand out—it’s yellowish.<br />

Also it doesn’t react with<br />

other elements so it doesn’t<br />

tarnish. All the others are<br />

grayish. Gold was used as a<br />

currency of choice in the past,<br />

but even though it isn’t used<br />

as currency anymore, it still<br />

retains its value. Here are 25<br />

awesome things you didn’t<br />

know about gold.<br />

#25 A ton of old cell phones<br />

will give you more gold than 1<br />

ton of gold ore<br />

#24 If all the gold in the<br />

ocean was taken out, there<br />

would be enough for every<br />

person on Earth to have 9<br />

pounds.<br />

#23 Hungarian chemist<br />

George de Hevesy melted<br />

down the gold <strong>No</strong>bel Prizes<br />

of German physicists Max<br />

von Laue and James Frank<br />

so that Nazis wouldn’t<br />

confiscated them. They were<br />

recast after the war.<br />

#22 Have you ever<br />

wondered why sailors often<br />

wore gold earrings? It’s so<br />

that if they drowned and<br />

washed up on the beach,<br />

the earrings would serve<br />

as payment for a proper<br />

Christian burial.<br />

#21 The Olympic gold<br />

medal is only 1% gold.<br />

#20 In Dubai, there are<br />

ATM’s that dispense gold<br />

bars!<br />

#19 Most of the gold that<br />

is found in the Earth’s crust<br />

was placed there by asteroid<br />

strikes.<br />

#18 Most of the gold on<br />

Earth is in the core because<br />

it sank to the center while<br />

the Earth was being formed.<br />

#17 In 1859, gold miners in<br />

the Rocky Mountains woke<br />

up at 1am to eat breakfast<br />

because the aurora was so<br />

bright that they thought it<br />

was morning.<br />

#16 Did you know that<br />

ice cream testers use gold<br />

spoons so that they would<br />

avoid the after taste of using<br />

regular spoons?<br />

#15 Roman politician Gaius<br />

Gracchus has a bounty put<br />

on his head of its weight in<br />

gold. The head was delivered<br />

but the bounty wasn’t paid<br />

because the person who<br />

captured the head filled it<br />

with lead.<br />

#14 Did you know that<br />

aluminium used to be the<br />

most valuable metal on<br />

Earth? Rich people would<br />

eat using aluminium cutlery<br />

will poorer people would use<br />

gold!<br />

#13 Mansa Musa, the ruler<br />

of the Mali Empire, spent<br />

so much gold in Egypt that<br />

he devalued it and almost<br />

destroyed the economy.<br />

#12 According to list25,<br />

Chinese prisoners are forced<br />

to mine gold in the game<br />

World of Warcraft. There are<br />

sources that report nearly<br />

100,000 virtual gold farmers<br />

throughout the country.<br />

#11 LEGO used to give a<br />

25.65 gram brick of gold to its<br />

employees who completed<br />

25 years of service.<br />

#10 Did you know that gold<br />

is actually edible?<br />

#9 Gold can be found on<br />

every continent.<br />

#8 Gold is usually forcibly<br />

extracted from water during<br />

earthquakes because of the<br />

pressure deep within the<br />

Earth’s crust.<br />

#7 The leaves of the<br />

eucalyptus tree have been<br />

found to contain some<br />

traces of gold.<br />

#6 All the gold ever mined<br />

in human history can fill<br />

up three Olympic-sized<br />

swimming pools.<br />

#5 Almost half of the gold<br />

came from Witwatersrand,<br />

South Africa.<br />

#4 The fear of gold is called<br />

Aurophobia.<br />

#3 Indian housewives hold<br />

almost 11% of the world’s<br />

gold. That’s more than the<br />

US, Germany, Switzerland<br />

and the International<br />

Monetary Fund combined.<br />

#2 The largest gold bar in<br />

the world weighs 250 kg or<br />

551 pounds.<br />

#1 Your body contains<br />

around .2mg of gold which<br />

is mostly found in your<br />

bloodstream.<br />

Photo by MIT<br />

Photo by Envirotect<br />

NOVEMBER <strong>2016</strong><br />

Mining <strong>Engineering</strong> and Its Importance<br />

31

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