Who proved that an empty space can expand and how?

 In 1915, Albert Einstein’s own math proved that empty space can expand. But he found the concept so profoundly absurd that he altered his equations to hide the discovery.

To force the universe to remain static, Einstein added a mathematical fudge factor to his theory of general relativity.

The first to mathematically prove that empty space could expand was Russian physicist Alexander Friedmann in 1922, followed independently by Georges Lemaître, a Belgian Catholic priest, in 1927. While Friedmann derived the expanding universe from Einstein's equations, Lemaître took the crucial next step. He proposed that the stretching of space itself would cause distant galaxies to appear to be moving away from Earth, and he calculated the rate at which this expansion was happening.

Lemaître’s mathematics provided the theory, but the empirical proof came in 1929 from American astronomer Edwin Hubble. Using the massive 100-inch Hooker telescope at the Mount Wilson Observatory in California, Hubble observed the light from distant galaxies. Building on earlier spectral measurements by astronomer Vesto Slipher, Hubble discovered a clear correlation: the farther a galaxy was from Earth, the faster it appeared to be receding. Its light was "redshifted"—meaning the light waves were physically stretched to longer wavelengths as they traveled across the expanding fabric of space.

The mechanism of this expansion is entirely counterintuitive. It is not an explosion of matter moving outward into a pre-existing empty void. The void itself is growing. The classic analogy is a loaf of raisin bread rising in an oven. As the dough expands, every raisin moves farther away from every other raisin, even though none of them are moving relative to the dough immediately surrounding them.

In the cosmos, galaxies are the raisins. They are largely stationary within their local regions of space, held together by their own gravity. It is the empty space between them that is stretching. Because this metric expansion happens everywhere evenly, a galaxy that is twice as far away has twice as much expanding space between it and the observer, causing it to recede twice as fast.

Edwin Hubble at the Mount Wilson 100-inch telescope in California, the instrument he used to confirm the distance-redshift relationship of galaxies in 1929. Photo by NOIRLab is licensed under CC BY 4.0.

What is the healthiest fruit to eat on an empty stomach?

 

This fruit earns its title without fanfare, but certainly deserves its place among the healthiest foods in terms of being consumed in the mornings. The enzymes that digest protein – namely papain – act more effectively in the early hours and when there is no competition from other foods, providing a healthy and gradual release of natural sugars into the body.

Bananas receive too many harsh criticisms regarding their effect in the mornings. While it may be true that bananas are too fibrous and may lead to indigestion when taken on an empty stomach, the same can be said about any other food with high sugar and fiber contents. Citrus fruits are another example of the food types that should not be eaten when the stomach is empty due to their acidity.

Watermelons deserve a special mention due to their high water content (around 92%) and lycopene content as well as their ability to quickly pass through the digestive tract. For those who require a quick breakfast, they are an ideal food to eat without fear of any negative consequences later in the day.

However, the truth of the matter is that personal tolerance is far more important than trying to place fruits on some kind of universally agreed upon hierarchy. In the end, a piece of fruit that induces heartburn simply isn’t a good option for you despite whatever benefits it may offer. The rule that applies to everyone is that low acid fruits that have plenty of water and/or enzymes like papayas, watermelons, and kiwis can be eaten right before breakfast without any problems.

There is nothing like the truth of eating healthy fruits should come out because of any form of conflicting news. I came across a fantastic masterpiece that brought light to us from this confusion, which is purely based on the facts regarding how the body works. It is something everyone should access. It’s all due to this fantastic site that created fantastic masterpieces.

What is the best food to eat on an empty stomach?

 

• Soaked Almonds

Soaked almonds are packed with essential vitamins and minerals. When you soak them, their nutrient value is enhanced. After a long fasting period it is good to eat 5-10 almonds. It gives you nutrition early morning and also improves satiety through the day.

• Amla Juice

Fresh amla juice should be taken on an empty stomach but after having it you should avoid coffee or tea for at least 45 minutes. Amla is rich in vitamin C and helps boost your immunity. It also helps in maintaining clear skin, healthy hair and good eyesight.

• Watermelon

This fruit should only be eaten on an empty stomach. The best time to have watermelon is early morning. Watermelon is low in calories and full of electrolytes. It is nourishing, light and hydrating and makes for a great start to a summer morning.

• Dates

Dates are a great source of instant energy that is much needed to kick start your day. Dates also contain a bunch of soluble fibers which are essential for good digestive health because it draws water into the digestive tract. This also helps relieve constipation. The potassium found in dates can also treat upset stomachs and diarrhea.