Sentences with phrase «pencil lead»

In a study published this week in Physical Review E, scientists hung weights from wooden rods and pieces of pencil lead to record the amount of force needed to snap the cylinder.

It is a rich color - close to being a slate, or think... dark pencil lead.

It is a rich color — close to being a slate, or think... dark pencil lead.

Researchers discovered graphene, or one - atom - thick sheets of carbon, by mechanically peeling progressively finer layers from raw flakes of graphite, the same stuff found in pencil lead (See: «Carbon Wonderland,» by Andre K. Geim and Philip Kim, in the April issue of Scientific American).

Fermi decided that the best material for slowing neutrons was graphite, the form of carbon commonly used as pencil lead.

... then I taped it in place on the front of the sign and rubbed more pencil lead on the top side of the 7 so that the lead underneath would transfer onto the face of the sign:

The team — led by Professor of Chemical Physics at Trinity, Jonathan Coleman, one of the world's leading nanoscientists — infused rubber bands with graphene, a nano - material derived from pencil lead which is 10,000 times smaller than the width of a human hair.

Color pencil leads are either wax or oil based, whereas watercolor pencils have a water soluble base.

Physicists struggling to reconcile gravity with quantum mechanics have hailed a theory — inspired by pencil lead — that could make it all very simple

It was plain old graphite — the soft, slippery stuff that is used for pencil leads and lubricants.

Using a microscopic imaging approach, called cryo - imaging, and MRI, the researchers verified that the MRI technique could detect micrometastases, even observing bone micrometastases that were less than 0.5 mm — the diameter of a very fine pencil lead.

Ordinary so - called pencil lead is graphite, a three - dimensional form of carbon.

When all the letters are dry, remove the stencils and wipe off any excess pencil lead markings with a damp cloth.

«Products that offer USPs such as stronger pencil leads, and inks that are designed not to dry out might be slightly more expensive, but investing in them can often save money in the long - run.

Associated with Thalassia, this sea grass has long, rod like leaves that rather resemble a flexible pencil lead.

But graphite, the form of carbon found in pencil lead but also found coating the surface of many particles of interstellar dust, is also made of one - atom - thick sheets of carbon atoms arranged into hexagonal rings.

Well, except for the fact the sketch seemed to indicate the Panamera was made out of pencil lead.

That material is still yielding new insights into the moon's history, as evidenced by a paper in the July 2 issue of Science claiming the first solid evidence for graphite, the form of carbon commonly used as pencil lead, in a lunar sample.

The drawings in the exhibition range from layers of straight lines meticulously drawn in black graphite pencil lead, to rows of delicately rendered wavy lines in colored pencil; from bold black - and - white geometric forms, to bright planes in acrylic paint arranged like the panels of a folding screen; from sensuous drawings created by dozens of layers of transparent washes, to a tangle of vibratory orange lines on a green wall, and much more.

As your tween jams the nub of a pencil into the sharpener, a tiny piece of pencil lead will undoubtedly break off and wedge itself inside the pencil sharpener, rendering it useless.

A carbon nanotube is an atom thick - cylinder of graphite, like in pencil lead.

These bubbles are thousands of times smaller than the tip of a pencil lead — so small they are invisible even under most optical microscopes — and their stability makes them useful in a variety of applications, from targeted drug delivery to water treatment procedures.

On the front is a black dial pierced by six holes ranging in size from the width of a pencil lead to a mere pinprick.

So it's not difficult to imagine that a planet smudged with soot and pencil lead would appear darker than expected.

You made graphene by playing with Scotch tape and pencil leads.

In the W - TENG, plastic was swapped for a multipart fiber made of graphene — a single layer of graphite, or pencil lead — and a biodegradable polymer known as poly - lactic acid (PLA).

Graphite, the form of carbon found in pencil lead, is essentially made from sheets of graphene stacked together like a deck of cards.

That would be a major mark on the unlikely line between pencil lead and quantum computers.

Pencil lead is actually graphite — a carbon mineral that, when dragged across paper, leaves writing behind because its atomic layers separate easily.

From previous work they knew that it is possible to shear graphene from graphite, the form of carbon found in pencil lead.

«They are as sharp as a pencil lead,» says Cameron Hudson of the University of Guelph in Ontario, Canada.

«They are as sharp as a pencil lead,» says Hudson, adding that the frogs «do try to stab you a bit when you pick them up».

Hanging 18 feet above the floor at the end of a black cloth - covered cord, the little light with the filament the width of a No. 2 pencil lead is unprotected by any lampshade.

In Nature Materials, a team led by Coleman (and funded by the UK - based firm Thomas Swan) describe how they took a high - power (400 - watt) kitchen blender and added half a litre of water, 10 — 25 millilitres of detergent and 20 — 50 grams of graphite powder (found in pencil leads).

In the W - TENG, plastic was swapped for a multipart fiber made of graphene — a single layer of graphite, or pencil lead — and a biodegradable polymer known as polylactic acid (PLA).

The only bad thing I have to say is I wonder how much product is really in here since the pencil lead thing is so thin.

The pencil lead was study enough to draw a line then but powder over to soften the look.

Pencil lead is also made or carbon.

But the peanut - flavored filling, a dark brown paste the width of a pencil lead, turned this into the snack that would have me falsely claiming a peanut allergy if someone broke them out at a party.

By selecting graphite — the material of pencil lead — McEwen manipulates this recognisable object, making it both familiar and strange in equal measure.

Just picking up a pencil led him to new themes and, at last, a new style or two.

Using maps, pencil lead, globes, old dictionaries and the like, Batle finds inspiration and «epiphany in mundane materials.»