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January 22, 2020

First-ever footage of the making and breaking of a chemical bond

YouTube video caption: "A molecule made of two rhenium atoms (dark spots) travels around two carbon nanotubes (lighter lattice of spots), settling into the gap between the nanotubes. When the atoms separate by a larger distance, the bond between the atoms is broken, and then later reforms."

Back story here.

The original research was published last Friday in the journal Science Advances; read the article, entitled "Imaging an unsupported metal-metal bond in dirhenium molecules at the atomic scale," here.

January 22, 2020 at 04:01 PM | Permalink | Comments (0)

Everyone in the whole world in relation to me — Wendy MacNaughton

Connect-picture

 

She lives in San Francisco; her online outpost is here.

January 22, 2020 at 02:01 PM | Permalink | Comments (0)

Got skates? Rinkwatch has you covered.

Screen Shot 2020-01-19 at 9.44.40 PM

Where the outdoor ice rinks are across North America.

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Free, the way we like it.

January 22, 2020 at 12:01 PM | Permalink | Comments (1)

Birdsong of the Lesser Poet — Josephine Jacobsen

 

Exuding someone's Scotch in a moving mist,
abstracted as he broods upon that grant,
he has an intimate word for those who might assist;
for a bad review, a memory to shame the elephant.

Who would unearth a mine, and fail to work it?
His erstwhile hosts are good for fun and games
that brighten the lumpen-audience on the poetry circuit.
He drops only the most unbreakable names.

Disguised as a youth, he can assign all guilt:
his clothes proclaim a sort of permanent stasis.
With a hawk's eye for signs of professional wilt,
he weeds his garden of friends on a monthly basis.

And yet, and yet, to that unattractive head,
and yet, and yet, to that careful, cagey face,
comes now and again the true terrible word;
unearned, the brief visa into some state of grace.

 

 

 

January 22, 2020 at 10:01 AM | Permalink | Comments (0)

Raindrop Muffler — "Stop noisy downspouts"

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I've had to deal with a noisy downspout for many years.

It's about 10 feet from my sleeping self, at the junction of a downspout and a short gutter that carries water to another downspout that goes to ground level.

I recently described a quick and dirty fix using a 3M scrubbing pad that I wedged into the base of the downspout.

Now comes a purpose-built solution.

From the website:

RainQuiet

Place this waterproof insert in your gutter to end annoying raindrop noise that keeps you awake.

Insert virtually eliminates noise, allowing water to flow out quietly and freely. 

Installs in seconds using a pencil and scissors.

Fits most downspouts.

2-5/8" x 6".

••••••••••••••••••••••••

Two for $9.99.

January 22, 2020 at 08:01 AM | Permalink | Comments (1)

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