What Swimming Can Do To You

There are so many swimming benefits, from physical to mental to social. You can think of swimming as the ULTIMATE low weight high rep training. The opposing force of the water completely forms muscle. You should actually feel your shoulders, triceps (back of the arms), lats (back muscles), butt, quads, and hamstrings all get tender from a great swim exercise. Furthermore, it is going to give a good cardiovascular workout as well. Understanding all the advantages of swimming is important since swimming really can change your life. Believe it or not, it can even extend your life!

Swimming provides you the greatest of both worlds. On one hand, it gives you the cardio benefits of running and alternatively, it paves way for you to attain weight training power building rewards. Swimming helps sustain the blood pressure and cholesterol levels of a person, thus making sure of the well-being of his/her heart. It's good for the wellness of your lungs as well as reduces the risk of stroke, heart attack and diabetes. Swimming builds flexibility, endurance, muscle strength and cardiovascular health. Water adds 12 times more opposing force as compared to air, therefore it requires a lot more work to go through water than air. Swimming not merely aids strengthen muscles; it assists to build lean, flexible muscles.

It improves the flexibility of one's joints and offers the scope for boosting your physical exercise workout level. This means, it will help a great deal in your weight loss program. You'll be able to burn around 3 calories a mile per pound of body weight. If you weigh 150 pounds and you swim one mile in half an hour, then you will burn 900 calories per hour. Obviously, the number of calories you burn is determined by the amount of you weigh and the intensity of your workout. If you weigh 150 pounds and swim at moderate intensity, you will burn around 600 calories each hour.

Regardless of your age, weight, skill level, or fitness level, swimming is an excellent choice for anybody including overweight people, people with disabilities, pregnant women and seniors. A recent study shows that swimming can help you live longer. In a study greater than 40,000 men ages 20 to 90, swimmers were 50 % less likely to die throughout the 32 year study period than were walkers or runners.

For many swimmers, swimming is similar to a type of mediation for the reason that swimming is a focused activity that can't be coupled with disturbances like reading or watching TV. Swimming allows you to regulate your breathing, and lets you focus on nothing but the tempo of your stroke. It cuts down on stress and leaves you feel calm and rejuvenated.

Swimming can be a lifelong sport that benefits the body, mind and spirit.

Beginners Guide to Swim Training for Triathletes

The swimming portion of a triathlon can be the most difficult part of the triathlon for most new triathletes. Nearly everyone is capable of running and cycling with little experience, however, getting into the pool can be a daunting endeavor for those without swimming experience. This article will give a few tips on how to train most efficiently for the swimming portion of a triathlon.

1. Proper Equipment: A swimmer needs a racing suit and a pair of well fitting goggles.

2. Dynamic Warm Up: Static stretching prior to aerobic activity has been shown to decrease performance. Any static stretching should be done after your workout.

3. Pool Warm Up: If dynamic stretching has been completed prior to a pool session, it is unnecessary to spend a large quantity of time warming up with slow swimming. Triathletes must make the most of their time in the water and wasting it with a long pool warm up is a misuse of time. I would recommend spending no more than 5 minutes warming up. I like to mix in drills and sculling in my warm up.

4. Technique Work: Improving your technique can shave minutes off of your swim. Pick 3 drills and master them. Time spent working on drills during every workout can be more beneficial than just straight training.

5. Work All Four Strokes: If you are capable of swimming all four strokes: butterfly, backstroke, breaststroke and freestyle, you should incorporate them into every workout. Although, you will only use freestyle in a triathlon, training all four strokes works different muscle groups and makes you a stronger, more complete swimmer.

6. Interval Training: Interval training is a set that alternates level of intensity and time. The possibilities of interval training are only limited by your imagination. Interval training will lead to improved endurance, speed and fitness level.

7. Warm Down: The purpose of warm down is to remove waste products, including lactic acid from your muscles and allow the heart rate to return to its resting rate. However, a lengthy warm down in unnecessary if you are not tapering.

Be patient with your training. Swimming is a difficult sport to become proficient at, especially if it is first undertaken later in life. Keep it simple, but stay with it and you will steady improvement.

What is Hacker?

Peretas (Inggris: hacker) adalah orang yang mempelajari, menganalisa, dan selanjutnya bila menginginkan, bisa membuat, memodifikasi, atau bahkan mengeksploitasi sistem yang terdapat di sebuah perangkat seperti perangkat lunak komputer dan perangkat keras komputer seperti program komputer, administrasi dan hal-hal lainnya , terutama keamanan.

Terminologi hacker muncul pada awal tahun 1960-an diantara para anggota organisasi mahasiswa Tech Model Railroad Club di Laboratorium Kecerdasan Artifisial Massachusetts Institute of Technology (MIT). Kelompok mahasiswa tersebut merupakan salah satu perintis perkembangan teknologi komputer dan mereka berkutat dengan sejumlah komputer mainframe. Kata hacker pertama kalinya muncul dengan arti positif untuk menyebut seorang anggota yang memiliki keahlian dalam bidang komputer dan mampu membuat program komputer yang lebih baik ketimbang yang telah dirancang bersama.

Kemudian pada tahun 1983, istilah hacker berubah menjadi negatif. Pasalnya, pada tahun tersebut untuk pertama kalinya FBI menangkap kelompok kriminal komputer The 414s yang berbasis di Milwaukee AS. 414 merupakan kode area lokal mereka. Kelompok yang kemudian disebut hacker tersebut dinyatakan bersalah atas pembobolan 60 buah komputer, dari komputer milik Pusat Kanker Memorial Sloan-Kettering hingga komputer milik Laboratorium Nasional Los Alamos. Satu dari pelaku tersebut mendapatkan kekebalan karena testimonialnya, sedangkan 5 pelaku lainnya mendapatkan hukuman masa percobaan.

Kemudian pada perkembangan selanjutnya muncul kelompok lain yang menyebut-nyebut diri hacker, padahal bukan. Mereka ini (terutama para pria dewasa) yang mendapat kepuasan lewat membobol komputer dan mengakali telepon (phreaking). Hacker sejati menyebut orang-orang ini 'cracker' dan tidak suka bergaul dengan mereka. Hacker sejati memandang cracker sebagai orang malas, tidak bertanggung jawab, dan tidak terlalu cerdas. Hacker sejati tidak setuju jika dikatakan bahwa dengan menerobos keamanan seseorang telah menjadi hacker.

Para hacker mengadakan pertemuan setiap setahun sekali yaitu diadakan setiap pertengahan bulan Juli di Las Vegas. Ajang pertemuan hacker terbesar di dunia tersebut dinamakan Def Con. Acara Def Con tersebut lebih kepada ajang pertukaran informasi dan teknologi yang berkaitan dengan aktivitas hacking.

Hacker memiliki konotasi negatif karena kesalahpahaman masyarakat akan perbedaan istilah tentang hacker dan cracker. Banyak orang memahami bahwa hackerlah yang mengakibatkan kerugian pihak tertentu seperti mengubah tampilan suatu situs web (defacing), menyisipkan kode-kode virus dsb. Padahal, mereka adalah cracker. Crackerlah menggunakan celah-celah keamanan yang belum diperbaiki oleh pembuat perangkat lunak (bug) untuk menyusup dan merusak suatu sistem. Atas alasan ini biasanya para hacker dipahami dibagi menjadi 2 golongan White Hat Hackers, yakni hacker yang sebenarnya dan cracker yang sering disebut dengan istilah Black Hat Hackers.