Do You Know
Questions & Answers on General Knowledge.
Is the earth a huge magnet? If so, how does it do this without being made out of metal?
The earth is a huge magnet and it is made out of metal. The earth's core is mostly iron and nickel, both of which can be magnetic metals. However, the earth's magnetism doesn't appear to come from the metal itself. Current theories attribute the earth's magnetism to movements in and around the core. There are either electric currents associated with this movement or some effects that orient the local magnetization of the metal. I don't think that there is any general consensus on the matter.
Where in space could you ice skate?
How does Jell-O work? How come it congeals when it is cooled?
Why did Britain and France clash in North America?
Which snake has the longest fangs?
How does a thermos keep cold things cold and hot things hot?
Why do people have to grow old?
What is a magnetic field?
How does the power/frequency of the earth's magnetic field compare to the magnetic fields of electrical appliances?
How do lizards and snakes smell?
How do I make my own satellite descrambler/decoder?
What happens if you start the microwave oven with nothing inside?
Why does my guinea pig have buck teeth?
Are shooting stars really stars?
How many poisonous plants are there in the world?
Why is alcohol bad for your health?
How does ammonia refrigeration work?
Where and when did numbers originate?
How did technology help improve sailing?
How does a CD player pause a CD if the CD continues to turn?
What causes things to glow in the dark? Why does phosphorus glow? Why does the glow die?
Which was the smallest dinosaur?
How can you demonstrate that sounds are waves produced by the vibration of material objects?
How do rockets work?
What is the librarianís job?
What is the relationship between turbulence, laminar flow, and Reynolds number?
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Rules to play Yoga
What to Practice
Before you begin your yoga asanas, it is important to recognize your bodys capabilities. Never force your body into a posture or try to go beyond your limit. Yoga is not a competitive sport. Progress may be slow, but with time your body will become flexible. Ease yourself gently into each position, and when you are holding a pose, check the body to see if you can feel tension building up anywhere. If you do, consciously try to relax that tension using the breath.
Some poses affect mood and energy differently. Poses that are more stimulating include Sun Salutation, backbends, and standing poses. These poses are best done early in the day. More appropriate for the evening are forward bends, inversions, and restorative poses. Sitting forward bends are ideal for relaxing and recharging.
Many of our regular daily activities tend to emphasize the use of one part or side of the body. To achieve a healthy and harmonious balance, it is important to keep all parts of the body equally strong and flexible. Yoga exercises make each group of muscles work equally on the left and right sides of the body to achieve equilibrium. To achieve body balance, always exercise both sides of the body equally. Balance forward bends with backbends to work both front and back of the body.
Whatever the purpose of a particular practice session, it should begin with 2 3 warmup postures, such as Mountain, Downward Facing Dog or Sun Salutation, as they stretch the spine, arms and legs. Then you can move on to more strenuous poses that strengthen the body and increase endurance. Standing, inverted and backbend poses would apply here. To wind down and settle the nerves, practice seated forward bends or supine poses.
Your routine should be wellrounded and should include some poses from all the major groupings of poses: standing, inversions, twists, forward bends, and backbends. While in the pose, do not hold the breath. Between postures, take 1 to 2 breaths to quiet the mind.
Inhalations are generally mated with upward or expanding movements. Going into a backbend such as Cobra, for example, you begin on an inbreath. Hold the pose and breathe rhythmically. An exception to this rule: upward movements of the legs work best on the exhalation since the legs are much heavier than the arms.
Exhalations are usually mated with downward and contracting movements, such as lowering the arms and with any positions that employ flexion of the spine (such as folding the body into itself such as in forward bends, abdominal curls, lateral stretches or twists.) When you lift a substantial weight, exhale on the effort. This applies whether youre lifting a 10pound dumbbell or your leg. The outbreath helps contract the abdominals which in turn stabilizes and protects the lower back.
Moving from one pose to another without breaking form is called sequencing or vinyasa in Sanskrit. This method of practice allows for a balanced workout regardless of practice length. Sequences can consist of related poses for the purpose of energizing (as with standing poses or backbends) or relaxing (with forward bends or restorative poses) the body or working on specific areas such as the hips, shoulders, or feet.
At the end of your practice it is important to take 5 to 10 minutes to relax your body. Relaxation is a state of total receptivity where, through deep breathing, the body can replenish and rejuvenate itself as the natural potential of the body to heal itself comes into play. Always end with several minutes in Corpse Pose to renew both mind and body.
Adjust your practice to your schedule and feelings. Some days you may not feel as energetic or flexible or you may feel weak or tired. On those days, try doing restorative poses, such as supine poses and forward bends. Dont practice when you have a fever. If you have a cold or other minor illness, use your judgement and restrict your practice to restorative ones.
Regard yoga as an ongoing process rather than a single accomplishment. Some people are genetically less flexible or have tighter muscle groups than others. Be patient with yourself. Yoga can be a lifelong pursuit, but persistency, consistency and discipline are required to gain the many lasting benefits yoga offers.