Graphene was a new technology that was super strong and lightweight. This allowed Head to shift the weight of the racquet from the shaft towards the grip and top of the racquet head.

Polarization describes how the weight is balanced on the racquet. For example, consider a racquet with an even balance. If you have all the weight concentrated around the balance point, you will have the lower swingweight possible for your given specs.

Head has developed several ski designs that integrate graphene in order to cater to these different needs. All of their skis are composed of a number of different layers. Graphene is often sandwiched between two layers of fiberglass.

Head also changed the naming system in the Prestige lineup. For the longest time, the MP denoted the brand's “standard” Prestige. Now that racket is called the Pro, while the MP is a 99 in2 racket, with an 18x19 string pattern allowing for a bit more forgivingness, spin and access to power.

By placing Graphene in the shaft of the racquet, Head has been able to take the weight saved in that area and redistribute it to the tip and grip areas of the frame. By placing more weight in these spots, the racquet can generate more kinetic energy during the shot, providing more power with less effort in the swing.

Light can reflect from different surfaces, like snow or water, irritating and temporarily worsening your vision. Polarized sunglasses are ideal for people who spend lots of time outdoors. Whether for work or play, these sunglasses can help you feel comfortable and provide better clarity as you go about your day.

Graphene oxide interrupts anxiety-related neuron signals without affecting the neurons, or the surrounding cells. In simple terms, it only 'turns down' the communications between specific neurons.

So if you use graphene oxide without any means of protection, you can end up with a variety of health issues. Some of these range from a decrease in cell viability to lung granulomas appearing randomly to kidney and even liver problems.

Racquet stiffness or flexibility is measured by the Swing Index (SI) or by power levels. A lower number Swing Index or a higher power level number mean the racquet is stiffer and will add more power to your swing.

So, what is the simple answer to “What is racket head speed?” How do we get more of it? Obviously, racket head speed is just that: The speed that the racket head travels during a swing to and through a ball. The average server moves their hand and racket head at the same speed from the shoulder.

Graphene stands out for being tough, flexible, light, and with a high resistance. It's calculated that this material is 200 times more resistant than steel and five times lighter than aluminum. With these properties, graphene has applications in the energy, construction, health, and electronics sectors.

Since graphene is the world's thinnest material, it also extremely high surface-area to volume ratio. This makes graphene a very promising material for use in batteries and supercapacitors. Graphene may enable batteries and supercapacitors (and even fuel-cells) that can store more energy - and charge faster, too.

Polarized lenses will not protect your eyes from UV damage more than standard 100% UV lenses. However, they can give you clearer, more accurate vision and alleviate some eye strain. If you find yourself squinting a lot, even when you're wearing sunglasses, consider investing in polarized sunglasses.

A virtually invisible filter can be built into the lenses of your sunglasses to eliminate the amount of reflecting light that enters the eye. Polarized lenses not only reduce glare, they make images appear sharper and clearer, increasing visual clarity and comfort.

Applications

• Biological Engineering. Bioengineering will certainly be a field in which graphene will become a vital part of in the future; though some obstacles need to be overcome before it can be used.
• Optical Electronics.
• Ultrafiltration.
• Composite Materials.
• Photovoltaic Cells.
• Energy Storage.

Graphene has a long list of beneficial properties – it conducts electrical and thermal energy extremely well, is lightweight and flexible, and is chemically inert. That, in combination with the fact that it's sustainable, make batteries leveraging the material an attractive option.