In English, many things are named after a particular country – but have you ever wondered what those things are called in those countries?
- Samples are collected in the field using several methods and are oriented using a magnetic compass and, for strongly magnetized rocks, a solar compass, prior to removal from the outcrop.
- When Francis Bacon remarked around 1620 that the world was being made over by printing, gunpowder, and the magnetic compass, he did not mention that all three had appeared first in China.
- Cochran et al. have shown that Catharus thrushes calibrate their magnetic compass on a daily basis using twilight cues, apparently just the reverse of what homing pigeons do.
- This led the researchers to conclude that the thrushes used cues from the setting sun to update their internal magnetic compass and get back on the right track.
- The Portuguese sailors had magnetic compasses, but without correction for certain systematic errors, these instruments could deviate from true bearings by as much as ten degrees.
- From these physiological and behavioral responses of birds, we can conclude that photopigments are involved with the avian magnetic compass system.
- Divided into two groups, the contest saw one of the team groups stay at the baseline to help solve the clues while the other group used a magnetic compass to get the right direction.
- In a second rectangular maze, the mole rats were tested on their ability to use their internal map along with the magnetic compass to find new shortcuts to a food reward.
- Each lava unit was sampled, usually as seven independent cores, drilled over several metres of outcrop using a portable motor and oriented by sun and magnetic compasses.
- They wore cameras mounted on their hardhats, tilt sensors with magnetic compasses, and global positioning devices.
- Magnetic storms can damage power systems and pipelines, whilst the changes in the magnetic field can mislead any navigational systems that use magnetic compasses.
- A magnetic compass should always point north; a moral compass should always point out what is moral - and immoral.
- Some scientists speculate that, like birds, migratory insects navigate using an internal magnetic compass, says Kelvin Conrad, a dragonfly researcher at Rothamsted Research in Harpenden, England.
- In contrast to birds, the fish, reptiles, and mammals that have been tested were able to use their magnetic compass in total darkness, indicating that their mechanisms of magnetoreception function independently of light.
- In previous research, Boles and Lohmann found that Caribbean spiny lobsters used an internal magnetic compass that enables them to determine the four cardinal directions: north, south, east, and west.
- Advances such as papermaking, printing technology, the magnetic compass for navigation and gunpowder propelled human civilization to greater heights many generations later.
- Or will he pick up an inexpensive magnetic compass and a paper map (both analog devices) to find his way?
- The avian magnetic compass differs from the technical compass used by humans in that the avian compass is an inclination compass.
- Navigation itself was to be revolutionised by two acquisitions from the Orient - the sternpost rudder and the magnetic compass.
- These were called portolan maps (from the Italian word for a sailing manual) and were produced by sailors using a magnetic compass.
English has borrowed many of the following foreign expressions of parting, so you’ve probably encountered some of these ways to say goodbye in other languages.
Many words formed by the addition of the suffix –ster are now obsolete - which ones are due a resurgence?
As their breed names often attest, dogs are a truly international bunch. Let’s take a look at 12 different dog breed names and their backstories.