Sentences with phrase «compass needles»

Previous research had identified only cases in which bacteria as a whole, filled with magnetic particles, are being oriented like compass needles for swimming in the right direction.

Mined to make the first compass needles, the mineral magnetite is also made by migratory birds and other animals to allow them to sense north and south and thus navigate in cloudy or dark atmospheric conditions or under water.

The magnetite particles are thought to act like microscopic compass needles, relaying information to the nervous system by straining or twisting receptors in cells as they attempt to align with the Earth's magnetic field.

Instead of up and down, the spins can have, say, five possible settings, or like compass needles can point in any direction.

After correcting the logs for errors in location, Gubbins compared the directions of captains» compass needles with the magnetic properties of rocks from the same period, allowing him to construct a time line of movements in the magnetic field.

THE PROBLEM Earth's magnetic field sculpts the dancing lights of the aurora borealis, aims compass needles, and most crucially, protects us from potentially lethal particles spewed by the sun.

If your compass needle goes bonkers, you've found a rock that's been hit by lightning and intensely remagnetized.

The magnetic field that surrounds Earth not only dictates whether a compass needle points north or south, but also protects the planet from harmful radiation from space.

It remained unknown, however, whether a swarm can be also controlled by external field in a way similar to permanent magnets (such as compass needle).

It works much as a compass needle aligns with Earth's magnetic field.

Spin often is compared with a tiny bar magnet like a compass needle, either pointing up or down — representing one or zero — in an electron or an atom's nucleus.

The researchers then tested whether artificially activating cells at different points along the ring, essentially moving the compass needle, would disrupt the flies» sense of direction.

«You can think of it as a little compass needle that responds to external magnetic fields.»

Place a muon in a magnetic field perpendicular to the orientation of its magnetization, and its magnetic polarity will turn, or precess, just like a twirling compass needle.

Initial studies will involve irradiating the anti-atoms with microwaves to try to engage them in a resonant interaction, flipping their spin like a compass needle swinging from north to south.

Upon exiting the heliopause, the local measurements of the magnetic field by Voyager 1, shown here as a compass needle, differed by 40 degrees from the «true magnetic north» estimated to be the direction of the magnetic field in the pristine interstellar medium.

As the spacecraft pushed into interstellar space, the compass needle moved ever closer to true magnetic north.

At the edges of this material, the spin of electrons — a particle property that functions a bit like a compass needle pointing either north or south — and their momentum are closely tied and predictable.

Electrons also have a property known as spin; an electron can «spin up» or «spin down,» pointing like a tiny magnetic compass needle in one of two directions.

Columbus speculated that the pole star itself pulled the compass needle to the north.

The creative materials integrated ASIC's MoneySmart compass needle.

Climate science is a multidisciplinary ship whose compass needle is stuck.

His real discovery of the relationship between the variation of the compass needle and sunspots held up and he every year [when he published the sunspot numbers] never failed to point out that the relationship still held.

Any serious student of human nature with numerous decades of observation of the ever wavering compass needle of some of our specie's moral and ethical rectitude, or sustained lack thereof, will realize that some of us are, for the most part, fair - weather honesty sailors.

Not exact matches

We know that people do very well morally and emotionally without religion, so what is the needle in your compass analogy pointing to?

Kids Activities Blog has full instructions for making a compass and all you need is a cork, needle and magnet.

The zinc alloy handle is hollow and contains the following: a bandage, tweezers, safety pin, razor blade, fishing line and hooks, needle and thread, pencil, and even a compass.

If you hold the compass horizontal, the needle will do one of three things: point to the same spot as the last time you used it, spin slowly before stopping at a random point or point to anything magnetic that you happen to be wearing.

So if you're standing over the north magnetic pole with a compass, the needle would dip and try to point straight down — hence its other name: the magnetic dip pole.

From a physics standpoint, then, the north needle of a compass (or any magnet) points to what is physically — but not in name — the south magnetic pole of the earth, in other words, in the direction of the Arctic.

The scientists discovered that Voyager 1 — like an orienteer through the outer solar system — measures the magnetic field moving the needle on a compass with cardinal directions provided by the IBEX ribbon.

A spinning compass whose needle is about to snap.

Pattinson's Connie Nikas might be the filthiest of the lot — a deeply troubled, dangerously impetuous blue - collar criminal who appears to have snapped the needle off his moral compass and stuck it into his arm.

By the end of this lesson, pupils will: 1) discover that a magnet can be made by stroking a steel bar with the same pole of a permanent magnet from one end to the other end in one direction 2) be able magnetise a needle and use it as a simple compass.

It's there, I'd think, knowing, turning toward it like a needle on a compass.

Whilst the various owners of the work will be geographically dispersed, the needle of every compass will be uniformly trained to the location of magnetic north, creating an invisible bridge between all its recipients.

If the Turner prize provides a rough - and - ready compass bearing for visual art in Britain, the needle has for some time been twitching towards this grandiose, grandiloquent, sometimes rough - and - ready city.