Wednesday, November 2, 2011

The Man Who Discovered How Blood Circulates

!±8± The Man Who Discovered How Blood Circulates

For years the scientific community didn't know "how blood circulates within the body." I will attempt to reconstruct the scientific method steps that were used to establish blood circulation.

First. we need a hypothesis. Prior to William Harvey, many scientists hypothesized that blood didn't move at all, but simply pulsed in response to the heart. These were good predictions, but others taught that arteries and veins were helping the blood flow, and that the blood was being absorbed into the body's system.

Because of the conflicting evidence or theories, the scientist had to devise experiments to prove their hypothesis and predictions. Harvey dissected animals and performed a series of experiments on laboratory animals that proved that the blood in the veins did flow back to the heart, rather than being absorbed like a tissue would absorb liquid.

The best experiment was having a patient's arm squeezed and then watching the blood escape. When he pressed down on the vein, the blood would stop leaving, indicating that it was indeed flowing back to the heart!

Based on this experiment, William Harvey concluded that there was a pattern of events happening to cause blood to circulate continuously. He further concluded that blood is pumped from the heart to all parts of the body through arteries, and returned to the heart through veins.

The experiments and data phase of the scientific method were crucial to Harvey's work. One can imagine him looking at the laboratory animal and tracing the veins, and because of his experiments with the tourniquet, we have a way to get blood from humans, medically, that we may have never thought about or realized.

Harvey was first to demonstrate the functions of the heart and the complete circulation of the blood, a feat very remarkable because it was accomplished without the aid of a microscope. Acceptance of his theories didn't happen for many years, and it was not until 1827 that they were fully substantiated with evidence.

William Harvey was born in 1578. He was an English physician considered by many to have laid the entire foundation of modern medicine as we know it. He studied at Cambridge, Obtained his M.D. at the University of Padua, in 1602. After that he returned to London and became a physician of St. Bartholomew's Hospital.

After that he was a familiar lecturer at the College of Physicians, and he was later appointed court physician. William Harvey was laid to rest in 1657. Harvey was a perfect example of a man who was determined to prove his hypothesis through tenacious research, testing, and hours upon hours working in his lab.

Harvey's great contribution, EXERCITATIO ANATOMICA DE MOTU CORDIS ET SANGUINIS IN ANIMALIBUS, appeared in 1628. It was a badly printed 72-page book, done by an obscure printer in Frankfurt. Harvey probably arranged it this way in order to avoid trouble in England, for he realized that his teaching about the heart was not widely accepted in his country.

William Harvey is a true medical icon and someone that should be highlighted regularly in the classrooms of our great nation...


The Man Who Discovered How Blood Circulates

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Saturday, October 29, 2011

The Powerful Benefits of Negative Cash Flow

!±8± The Powerful Benefits of Negative Cash Flow

I recently worked with an investor who withdrew from buying a great one bedroom condo that he was going to use as a rental. He withdrew because he was going to have negative cash flow the first few years that he owned the property.

What really surprised me about the situation is that the investor was buying the condo with a no-money-down loan and despite putting none of his own cash in the property; he still expected to break even right from the start!

This is kind of like buying a cow for the milk, but not being willing to feed her!

The same goes with buying small rental properties, (the kind of properties that an average person could afford).

If you were to make a 30% down payment on a rental property, (the kind of down payment the banks might want on an investment property) you would likely get a small amount of positive cash flow right from the start.

However, if you buy an investment property with a small down payment or no down payment, you should expect to have to "feed" the property during the first few years of ownership. This is not necessarily a bad thing.

Consider the purchase of a 0,000, single family home with 4 bedrooms and 2 bathrooms that could be rented for 00/month.

Here is what could happen when you make a large down payment, and what might happen when making a small down payment or no down payment:

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Example #1: A large down payment & positive cash flow:

"Joe Investor" makes a 30% down payment (,000) when buying his 0,000 rental home. This leaves Joe with a mortgage of 0,000.

At a 6.5% interest rate, Joe's monthly payment with taxes and insurance would be about 10 (PITI). Let's assume maintenance and vacancy costs of 0/month. Joe's total monthly cost of owning the property would be 80/month.

The difference between the rental income of ,400 and the expenses of 80 gives Joe 0 in monthly positive cash flow.

If the home went up in value 2% the first year, Joe will have made ,000 in appreciation + ,440 in total positive cash flow. Total profit: ,440

Joe's total first year return on the ,000 he invested would be: ,440 ÷ ,000 = 9%

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Example #2: No down payment, and some negative cash flow:

"Jane Landlady" has great credit, but not a lot of cash, so she decides to buy her 0,000 rental home with no money out of pocket. Her mortgage payment is ,489 per month (PITI).

Like Joe, Jane also has vacancy and maintenance costs of 0/month.

Jane's total cost of owning the home is ,659 per month. Jane is receiving ,400 per month in rent.

Jane has to take 9/month out of her pocket to make up the difference between the cost of owning the property and the rental income she receives.

Jane's rental home also goes up in value 2% (,000) during the first year.

Jane's total investment into the home is 9 for 12 months, or 08.

Jane's first year return on her cash investment: 00 ÷ 08 = 128%.

Needless to say, Jane is very happy about this.

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Jane will probably have several years of negative cash flow before she can raise the rents high enough to cover her costs. The good news is that her return on invested dollars (the "negative" cash flow) will always be dramatically higher than Joes.

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P.S. What if Joe & Jane both stop making payments on their rentals due to not being able to get their homes rented? Who will be the first person the bank forecloses on?

Not Jane, she has very little equity. It would cost the bank money to take back ("foreclose on") and resell Jane's rental home.

Poor Joe though, the bank wants his rental house bad. There's lots of equity in Joe's rental home. The bank isn't going to lose a dime foreclosing on Joe's rental house

Joe loses his rental home to foreclosure and Joe kisses his good credit, goodbye.

Jane's no down payment strategy has bought her a little extra time and that might be just enough time to let her save her credit and save her rental home from foreclosure.


The Powerful Benefits of Negative Cash Flow

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