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February 11, 2020

time.gov — It's later than you think

Cc

The site was upgraded last week.

Remember: a person with one clock always knows what time it is; a person with two is never sure.

February 11, 2020 at 04:01 PM | Permalink | Comments (1)

Evolution of Hindu-Arabic Numerals

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From Encyclopedia Britannica:

Hindu-Arabic numerals are a set of 10 symbols — 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 — that represent numbers in the decimal number system.

They originated in India in the 6th or 7th century and were introduced to Europe through the writings of Middle Eastern mathematicians, especially al-Khwarizmi and al-Kindi, about the 12th century.

They represented a profound break with previous methods of counting, such as the abacus, and paved the way for the development of algebra.

[via RealityCarnival]

February 11, 2020 at 02:01 PM | Permalink | Comments (0)

A clever way to place a six-pack on a shopping cart

YouTube caption:

Today, Harris Teeter checker Henry put my Minute Maid six-packs atop the top edges of my shopping cart, simultaneously creating more usable space inside the car and making it easier to remove the drinks to transfer them to my vehicle.

Lagniappe: it's also easier to place them up top like Henry did than it is to put them down on the bottom of the cart.

I've seen this technique used a couple times before by grocery store checkers but for whatever reason, I never remember to use it when I'm putting drinks in my shopping cart.

Perhaps making this video will serve as a mnemonic of sorts.

If you subscribed to my YouTube channel, you'd be home now.

Wait a sec....

February 11, 2020 at 12:01 PM | Permalink | Comments (1)

Seveneves

Mmmmm

Another huge (880 pages) book from the master of such tomes, Neal Stephenson.

I wish it had been twice as long.

On page 1 the moon explodes, followed by a two-year countdown till its fragments incinerate the Earth.

Wonderful stuff.

Then on page 569 Part 3 begins: "5,000 years later."

That's when an already superb novel takes wing and becomes incandescent.

February 11, 2020 at 10:01 AM | Permalink | Comments (2)

World's best textile shears

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They'll cut anything with ease, including Kevlar and carbon fiber.

Can your shears do that?

Didn't think so.

From the website:

ARS SS-526H Textile Shears are known as the "Kevlar Eater."

These shears are made of Super High Speed Steel, a very hard alloy specifically developed for cutting dense fiber which is too hard to cut with conventional scissors.

ARS's unique "micro-edge" treatment produces microscopic waves on the edge of the blades to secure the material firmly at the shearing point.

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The blade is deliberately curved to be able to hold material firmly and cut it efficiently from the fulcrum to the tip.

The dial nut is adjustable to vary torque as needed.

The 526H was designed specifically for aramid base fabrics, such as Kevlar.

They have excellent durability, more than 100 times that of ordinary steel shears.

Since 1876 ARS has been a leader in cutting tools.

This represents the pinnacle of their work.

Made in Japan.

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$696.99 (Kevlar and carbon fiber not included).

February 11, 2020 at 08:01 AM | Permalink | Comments (0)

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