What does the term it's a fast track mean in regards to the long jump track?

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When a track is designed for Olympic competition, the designers are going to make the track as “fast” as possible — which usually means that the track will provide a great deal of grip, but will be as hard as possible to allow the runners, especially sprinters, get the best push-off from the track.

Now there’s one other trade-off that needs to be made. Sprinters typically want the track as hard as possible, while distance runners would like to see a bit softer surface. Sprinters are only on the track for a matter of seconds in their races, so they would prefer a very hard surface to get the most speed out of the track. Distance runners are racing on the track longer and would prefer more cushion. When the designers sit down to create the running surface, they need to decide if they’re going to make a preference toward sprinters or distance runners.

Anecdotally speaking, I’ve heard that some Olympic tracks — like Atlanta’s– were designed more with...

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Did you know that there are many similarities between business and war? In both cases, the victor is the one who uses superior strategy against his or her competitor. Think about it. Are you a victor or are you falling behind?

There are three principles of military strategy you can apply to your work every single day. The first idea from the military is called the principle of maneuver. The principle of maneuver says that you should be clear about the goal, but be flexible about the process by which you achieve it. According to the Menninger Institute, flexibility is the most important quality required for success during times of rapid change.

Be Open to Continuous Feedback

A key peak performance quality is to “accept feedback and self-correct.” Peak performers are those who can take information, even if it is contrary to all of their planning, and accept the information, modify their plans, and continue moving forward. They are always open to new ideas and insights...

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YunExpress

Official Website:http://www.yunexpress.com/

YUNPOST is an innovation logistics solutions company. We specialized in e-commerce, logistics operation, IT and so on areas. We handle thousands of parcels daily to 200 countries worldwide. Our API is available for clients to integrate seamlessly. We will be constantly pursue speedy delivery, Best service quality and low shipping cost for our clients.

FLYT

Official Website:http://www.flytexpress.com/

Flyt Logistics Co., Ltd. is a leading service provider engaged in international air mail, international air express and international storage and distribution, also one of the first partners and recommended logistics service providers of China EBAY. The company provides various post, storage and distribution, order management system, for multinational electronic commerce operators.

Ruston

Official Website:http://www.ruston.cc/

Ruston express based in...

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Fitbit helps you better understand your sleep patterns and quality. Choose a shortcut to see the answer below:

Your Fitbit tracker's settings can record your sleep in either "sensitive" mode for extremely detailed sleep reporting or "normal" mode for a more basic idea of your sleep patterns.

The normal setting counts significant movements as being awake (such as rolling over) and is appropriate for most users. The sensitive setting will cause your tracker to record nearly all movements as time spent restless or awake. This setting may be helpful for users who wake up feeling tired even though their sleep history shows sufficient rest.

If your Fitbit tracker is worn consistently each night with the same setting, the data that it produces should be useful. To change your setting in the Fitbit app for iOS or Windows 10, go to Account > Advanced Settings > Sleep Sensitivity. To change your setting in the fitbit.com dashboard, go to Settings > Devices > scroll down to...

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At Amazon, our vision is to be Earth's most customer centric company; to build a place where people can come to find and discover virtually anything they want to buy online. With Amazon.in, we endeavour to build that same destination in India by giving customers more of what they want – vast selection, low prices, fast and reliable delivery, and a trusted and convenient online shopping experience – and provide sellers a world-class e-commerce platform. We are committed to ensure 100% Purchase Protection for your shopping done on Amazon.in so that you can benefit from a safe and secure online ordering experience, convenient payment options such as cash on delivery, easy returns and enjoy a completely hassle free online shopping experience.

We launched with Books and Movies & TV Shows and have expanded our offerings to include the Kindle family of E-Readers, the Amazon Fashion Store and various products under different categories. Customers can now buy products from popular...

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Frequently Asked Questions

What can I return?

You may return most new, unopened items sold and fulfilled by Amazon within 30 days of delivery for a full refund. During the holidays, items shipped by Amazon between November 1st and December 31st can be returned until January 31st.

When will I get my refund?

Usually in about 2-3 weeks. Most refunds are fully refunded in 3-5 days after we receive and process your return.

Does Amazon offer replacements and exchanges?

Yes, you can create replacement and exchange orders from this page by clicking Return Items and following the instructions. If you received a damaged or defective item, we’ll ship you a replacement of the exact item. If you would like to exchange an item for another, you can exchange for a different size or color or for an item in your...

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