Sentences with phrase «timing of human hair»

Also, the timing of human hair loss must be addressed, Dunbar says.

Not exact matches

Fine particulate pollution is a mixture of solid particles and liquid droplets, many times smaller than a human hair.

Well if we use SCIENCE and assume Jesus was a real human being then he was a hebrew of the time period which means he most probably had tan olive skin, dark brown eyes, a black beard and black curly hair.

One fibre, the thickness of a human hair, can carry 2,000 phone conversations, data, text or pictures at the same time.

Nanomaterials are typically less than 100 nanometres, or 100,000 times less than the width of a human hair.

The material measures just one atomic layer, which is about one - thousand times thinner than a single strand of human hair.

She helped the trio build a forest of tiny carbon nanotubes, cylinders of pure carbon 10,000 times smaller than a human hair, that could boast over 2000 square metres of area per gram.

Carbon nanotubes are a tube - shaped material which can measure as small as one - billionth of a meter, or about 10,000 times smaller than a human hair.

However, not only did the wires become longer during this time, but also thicker: their diameter increased from an initial 20 nm to up to 140 nm at the top of the wire, still making them around 500 times thinner than a human hair.

We can guess that this coat was lost by the time of Homo erectus, as its skeleton's proportions show that it was adapting to heat stress like modern humans do, and part of our adaptation involves an enhanced sweat gland cooling system which would not function well with a full coat of body hair.

They were the first to demonstrate that a microwave beam could actually lift a real structure — a tiny sail, about 1.4 inches in diameter, composed of lightweight carbon fibers 10 times thinner than a human hair.

The team's novel fabrication technique involves patterning a solar absorber with tiny holes with diameters less than 400 nanometers (that's roughly 200 times smaller than the width of a human hair), cut into the absorber at regular intervals.

The particles found measure just five micrometres or less; approximately 20 times smaller than the width of a human hair.

A scientific team led by the Department of Energy's Oak Ridge National Laboratory has found a new way to take the local temperature of a material from an area about a billionth of a meter wide, or approximately 100,000 times thinner than a human hair.

One clinical trial involves the drug CGF166, a one - time gene therapy, which, if proven successful in humans, could regenerate new hair cells within the cochlea that can signal the part of the brain that processes sound.

If the size of these crystalline structures is 1,000 times smaller than a single human hair diameter, then they are called nano - structures such as nano - rods, nano - wires, nano - ribbons, nano - belts etc..

The source of new hair: For the first time, researchers have been able to take human dermal papilla cells (those inside the base of human hair follicles) and use them to create new hairs.

The sulfuric acid condensed into minute droplets — each two hundred times finer than the width of a human hair — that could easily remain suspended in the air as an aerosol cloud.

They also tracked Apolipoprotein E (APOE 4), a well - known genetic risk factor for Alzheimer's, as well as lifetime cumulative exposure to unhealthy levels of PM2.5 — particles which are at least 30 times smaller than the diameter of a human hair and frequently cause the haze over urban areas.

And all of this thanks to tiny structures that are up to 1,000 times smaller than a human hair.»

The devices are about 10 times thinner than a human hair, so presumably you would need epic fleets of them to make a difference in massive oil spills like the Deepwater Horizon disaster.

One particle is only 500 nanometers in size, which is 150 times smaller than the diameter of a human hair.

The gecko is one of nature's best climbers, thanks to millions of microscopic hairs, with features about 20 to 30 times smaller than a human hair, that allow it to climb on virtually any surface.

After you joined the faculty of the University of California at Berkeley in 1992, your attention turned to carbon nanotubes, carbon cylinders 10,000 times narrower than a human hair.

The device works by using periodic nanostructures, 10,000 times smaller than the width of a human hair, to separate the different frequencies of light from each other.

The material Professor Barber tested was almost 100 times thinner than the diameter of a human hair so the techniques used to break such a sample have only just been developed.

Once inside the lungs, the microscopic fungal spore transforms into a spherule (pictured), a podlike structure 10 to 20 times the size of the original spore (30 or 40 microns, or about half the width of a human hair).

Menon and his team discovered a way to design a flat lens that can be 10 times thinner than the width of a human hair or millions of times thinner than a camera lens today.

In the center is a hole poked through the metal layer with a diameter of about 300 nanometers — about 1,000 times smaller than the diameter of a human hair.

In contrast, perovskite solar cells depend on a layer of tiny crystals — each about 1,000 times smaller than the width of a human hair — made of low - cost, light - sensitive materials.

The researchers designed the electrodes at the nanoscale — thousands of times thinner than the thickness of a human hair — to ensure the greatest surface area would be exposed to water, which increases the amount of hydrogen the device can produce and also stores more charge in the supercapacitor.

Recent advances in optical physics have made it possible to use fluorescent microscopy to study complex structures smaller than 200 nanometres (nm)-- around 500 times smaller than the width of a human hair.

Malinski's team has developed unique methods and systems of measurements using nanosensors, which are about 1,000 times smaller in diameter than a human hair, to track the impacts of Vitamin D3 on single endothelial cells, a vital regulatory component of the cardiovascular system.

Their name is derived from their size, since the diameter of a nanotube is on the order of a few nanometers (approximately 50,000 times smaller than the width of a human hair), while they can be up to several millimeters in length.

These structures of carbon may be tiny — a nanotube's diameter is about 10,000 times smaller than a human hair — but their impact on science and technology has been enormous.

(A nanometer is one billionth of a meter, or roughly 80,000 times smaller than the width of a human hair.)

To make such a detailed model, researchers took specks of brain tissue and cut them into slices thousands of times thinner than a human hair.

Shortly afterwards, a team led by paleontologist Derek Briggs of Yale University showed for the first time that cellular structures called melanosomes, which contain the melanin pigments that give color to skin and hair in humans and plumage in birds, can be preserved in fossil feathers.

Twisting together a bundle of polyethylene fishing lines, whose total diameter is only about 10 times larger than a human hair, produces a coiled polymer muscle that can lift 16 pounds.

At 30 microkelvins, the atmosphere would shrink to a mere millimeter, and at 30 nanokelvins, the height of the atmosphere would be one micron, or a hundred times less than the thickness of the human hair.

Each capsule is just 20 nanometers across; that's a thousand times smaller than the width of a human hair.

Twisting together a bundle of polyethylene fishing lines, whose total diameter is only about 10 times larger than a human hair, produces a coiled polymer muscle that can lift 7.2 kilograms, the team found.

The fluid then goes through a second chamber, where the same force is used to filter out everything smaller than 130 nanometers, which is about the size of most exosomes and 500 times smaller than the thickness of the human hair.

A 4 - nanometre wire of silicon, about 20 000 times thinner than a human hair, is called a «quantum wire», since the carriers within it are strongly confined in two dimensions but free to move long distances in the third dimension, along the wire.

«Smart» contact lenses that monitor the health of patients» eyes could become a reality, according to scientists who have devised flexible, electronic circuits 50 times thinner than a human hair.

Working in collaboration with Douglas Goff, Ph.D., and colleagues at the University of Guelph (Canada), Zuluaga Gallego and Velásquez Cock extracted cellulose nanofibrils (CNFs), which are thousands of times smaller than the width of a human hair, from ground - up banana rachis.

For example, using a specially developed patterning technique, they wrote the word, «ICE,» on the material in a physical space 10 times smaller than the diameter of a human hair.

Although the tiny particles are around ten thousand times smaller than the diameter of a human hair, the surface area of a kilogram of such particles is equivalent to that of several football fields.

The metamaterials were created with nonlinear optical response a million times as strong as traditional nonlinear materials and demonstrated frequency conversion in films 100 times as thin as human hair using light intensity comparable with that of a laser pointer.

Carbon nanotubes, for example, are tens of thousands of times thinner than a human hair, yet are stronger than steel on an ounce - per - ounce basis.