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RubiksCube77
Nov Member 2021

RubiksCube77

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The physics behind the solar sail

As usual, I'm going to try to do this by memory first.

Photons from light strike the sail, and the sail gains momentum because of this. Force is can be defined as change in momentum over change in time, and it is this force that causes an acceleration according to Newton's second law. The acceleration means the object starts moving. Make RuneScape Great Again usually on at 3:00 PM PST
I am the Emperor of Africa, Afrikaneer Engineer, and retired RSOF troll
The Real Bad African (shenanigans moved to YT under an assumed name)

24-May-2015 05:41:09

MrsWetlander
Sep
fmod Member
2023

MrsWetlander

Forum Moderator Posts: 16,821 Opal Posts by user Forum Profile RuneMetrics Profile
Aloe Vera


Aloe Vera has many natural healing properties. It can act as an anti bacterial, fungicide, astringent, and also acts as an anti inflammatory and hydrates the skin. Its a nice skin application for things such as sunburns, and even acne. It can be used as a moisturizer, without adding oil to the skin. Some have found relief with aloe used on skin problems such as psoriasis and even cold sores. It is not a cure, but helps speed the healing process.

How?

It improves the blood circulation in the area, and prevents cell death around a wound, which also gives to less scarring. The anti inflammatory can go deep into the tissues, which helps with the healing process, and less scarring, because it contains zinc, vitamins C and E. Along with these properties it has as antibacterial, fungicide, it also has amino acids, and enzymes, so healing is increased.

You will see Aloe Vera in many of the counter preparations for skin, however you can often use just the gel, without other applications and get satisfactory results, and it is more natural.


* This should never be used to replace typical applications with extreme cases. You should always consult your Doctor if the problem persists.

But who knew such a simple plant extract, could do so much ? Please do be aware that many of those counter Aloe Vera gels contain other ingredients. Read the labels, and if possible, pure Aloe from the plant is suggested as best. ;)


~ Mrs ~ "
When the power of love overcomes the love of power the world will know peace.
" ~ Jimi Hendrix ~

24-May-2015 18:38:58

9th Doctor

9th Doctor

Posts: 7,061 Rune Posts by user Forum Profile RuneMetrics Profile
Did you know, if you emptied all the worlds oceans and then processed them, the resulting block of gold would have enough mass to provide every human on the planet with about 15.5 pounds of the stuff?

The reason why gold has such value is it has been estimated that all through human history only a block roughly the size of the base of the Statue of Liberty has ever been dug up, this sounds like a lot but it is only about 166,500 tonnes. At about $1,203/oz this is estimated to be worth about $8,025,300,000,000 though of course daily price fluctuations are responsible for the price going up and down daily by about 0.1%

In comparison the rarest element on the planet is Francium, there are thought to only be 20 naturally occuring atoms of the stuff on Earth at any one time. One gram of it made in a laboratory might set you back a few billion dollars however it degrades so fast you would never be able to resell it.

Thanks - The Doctor. This year I gift to you 'Air from my lungs'! ~ The Doctor.

24-May-2015 19:45:39 - Last edited on 24-May-2015 19:59:29 by 9th Doctor

Many Much

Many Much

Posts: 4,130 Adamant Posts by user Forum Profile RuneMetrics Profile
Sailing - using the wind.

A ---------> B


\
.....
/ \
.....
/ \
.....
/
.........
----- Sail <--------Wind
..
\ /
.....
\ /
.....
\ /
.........
Zigzag

You make the canvas in 45° by using the wind and sailing zigzag to reach the target location.
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24-May-2015 22:56:18

RubiksCube77
Nov Member 2021

RubiksCube77

Posts: 943 Gold Posts by user Forum Profile RuneMetrics Profile
Something I just learned yesterday from reading my Physics textbook. Imagine a perpendicular line on a reflective surface. Now a beam of light hits the reflective surface and is reflected. If we look at the angle from the normal line to the beam of light hitting the surface, it is the same angle for the angle between the normal line and the beam of light being reflected off. I'll try to make a diagram.

light hitting surface -------> \ (angle) (perpendicular line) (angle) / <------ reflected light

The official name I believe is the law of reflection. Make RuneScape Great Again usually on at 3:00 PM PST
I am the Emperor of Africa, Afrikaneer Engineer, and retired RSOF troll
The Real Bad African (shenanigans moved to YT under an assumed name)

25-May-2015 20:07:04

MrsWetlander
Sep
fmod Member
2023

MrsWetlander

Forum Moderator Posts: 16,821 Opal Posts by user Forum Profile RuneMetrics Profile
Aside from the fact that listening to the waves is relaxing, there are other benefits from being around and in the ocean.

If your floating in the water, the blood is not circulating as much thru the limbs, and is diverted to the organ area, less work for the circulatory system. Sea air is charged with healthy negative ions, which allows for more oxygen absorption, and better serotonin balance. Which is a big reason why ppl feel more refreshed after time at the beach.

The heat of the sun affects our endocrine system, which also affects endorphins, which is calming and can give you that happy all over good feeling in general.

" Some " sun is actually good for the body. Vitamin D is very important to utilize calcium in the body. It also modulates cell growth, neuromuscular and immune functions, and helps with the reduction of inflammation.

" Some " ocean water is actually good for the skin and hair. It has many vitamins and minerals and can have a healing affect on many with skin or scalp irritations / problems. Walking in the surf softens those dead cells of the skin and the sand gently exfoliates and leaves your feet feeling massaged ( since the sand molds to your shape, and supports and relaxes just where you need it ).

All of the above is great for those with rheumatoid arthritis too !

Growing up on the beach, you hear all the visitors wonder how bad it is. It is not, if done responsibly. Sure, if you lay out there and burn your skin up.. your not going to feel very well. Your not well. You damaged yourself. If you do it responsibly, you can greatly benefit. Early mornings / late afternoons are the best time of the day to get the most benefits. Save those harsh times of day to get out and do things like wander the shops and all. ;) Plus your not fighting for a good spot if in a busy area, or the crowds, which just adds to stress and defeats the purpose.


~ Mrs ~ "
When the power of love overcomes the love of power the world will know peace.
" ~ Jimi Hendrix ~

26-May-2015 16:43:10 - Last edited on 26-May-2015 16:46:06 by MrsWetlander

Many Much

Many Much

Posts: 4,130 Adamant Posts by user Forum Profile RuneMetrics Profile
Asparagus is very effective to know the condition of your uríne health.
The uríne will be green colored after a few hours after eating them and also will be smellling very concentrate. If you encounter this after you ate asparagus then your uríne health is in good condition since the concentrate smelling is telling that everything is cleaned.

Plums and dates are effective if you have constipation. You will poop easier! (Haha!)
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26-May-2015 20:58:10 - Last edited on 26-May-2015 21:04:19 by Many Much

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