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This beautiful, cosy Scandinavian style bedroom

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10 Things that can Wreck your Life

1. Not living in the moment. Always wishing you were somewhere else, doing something different with other people.

2. Blaming your problems on your past. Although the past affects us, it need not define us. We can choose, decide and act – and take control of our lives. Don’t let your past heartache and pain affect who you become.

3. Running away from problems. It’s pointless to bury your head in the sand and pretend that things are fine when you’re dealing with a problem. Face reality, take action and work to turn things round.

4. Being ungrateful. Being thankful sets you free in your heart and mind. It inspires all that’s good and, also, oils relationships. But an ungrateful person will wear others down. It destroys your spirit, and it saps your energy.

5. Being angry and bitter. Refusing to forgive and bearing grudges against others will slowly poison our personality. It’s much better to release them and to focus, instead, on living a happy and fulfilling life.

6. Letting your expectations rule your life. Life rarely goes smoothly and according to plan – and people disappoint us and let us down. Accepting this is normal takes some tension out of life.

7. Disrespecting yourself and others. Every single person deserves respect, and every single person is fighting their own battle. So focus on being kind, understanding and forgiving.

8. Neglecting important relationship. A relationship that’s built on unconditional love – where a person accepts us for who and what we are – is truly a gift and is worth fighting for. Don’t take it for granted – recognise that it’s a gift.

9. Loving people who are bad for us. Not every person will build into your life. Be aware of those who who’ll use you, or who want to bring you down, or who want to hurt you, or destroy your confidence.

10. Never taking risks. If you always play it safe, you’ll find you end up going nowhere. You must be ready and willing to take risks. If you don’t, you may regret it as you’ll miss so much in life.

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fuckyeahfluiddynamics

This post is part of a collaborative series with FYP on pilot-wave hydrodynamics. Previous entries: 1) Introduction; 2) Chladni patterns

In 1831, in an appendix to a paper on Chladni plate patterns, physicist Michael Faraday wrote:

“When the upper surface of a plate vibrating so as to produce sound is covered with a layer of water, the water usually presents a beautifully crispated appearance in the neighborhood of the centres of vibration.” #

Faraday was not the first to notice this, as he himself acknowledged, but it was his many clever observations and tests of the phenomenon that led to its naming as the Faraday instability. Like Chladni patterns, Faraday waves can take many forms, depending on the geometry of the vibrator and the frequency and amplitude of its vibration.

Beneath the “crispations” at the air interface, the liquid inside the pool is also moving, driven by the vibrations into streaming patterns. Sprinkling particles into this flow reveals discrete recirculation zones that depend on the vibrations’ characteristics, as seen above. This behavior can even be used to assemble particles into distinct formations.

When the vibrations are large enough at resonant frequencies, the rippling waves at the surface become violent enough to start ejecting droplets. You can experience this for yourself using a Chinese spouting bowl or a Tibetan singing bowl with some water. It’s also, bizarrely enough, a factor in alligator mating behaviors!

Next time, we’ll explore what happens to a droplet atop a Faraday wave.

(Image credits: N. Stanford, source; L. Gledhill, source; The Slow Mo Guys, source)