why does light travel in straight lines

why does light travel in straight lines

A straight line is 'In the eye of the beholder'. As far as light is concerned it travels in a straight line from point A to point B. However, for a distant observer the trajectory may be a bit curved. The reason is that the geometry of space is a bit warped near a massive gravitational source like a black hole or even the sun. One example of that is the verification of Einstein's theory of light from a distant star being bent by the sun's gravitational potential. ...

 why use a realtor to sell your home

why use a realtor to sell your home

10. A real estate agent knows the real estate market in your area, has access to data about recent sales in your neighborhood, and can help you price your home accordingly. 9. A real estate agent has access to the Multiple Listing Service (MLS). The MLS is a database of current homes for sale. By hiring a broker, information about your home will be instantly available to agents all across your area. They can conduct searches in the MLS for potential buyers to locate properties the buyers might be interested in. 8. If you try to sell your home by yourself, you might not be listed in the MLS and buyers' agents won't bring your home to their clients' attention. Also, some buyers are not comfortable about looking at your house while you're there too, because they feel inhibited about

 why do we jump in our sleep

why do we jump in our sleep

A hypnagogic jerk is an involuntary muscle spasm that occurs as a person is drifting off to sleep. The phenomenon is so named in reference to the hypnagogic state the transitional period between wakefulness and. Hypnagogic jerks, are also commonly known as hypnic jerks or sleep starts. The muscle spasms may occur spontaneously or may be induced by sound, light or other external stimuli. Some people report hypnic jerks accompanied by hallucinations, dreams, the sensation of falling, or bright lights or loud noises coming from inside the head. [ Sleep starts are quite common, with some research suggesting that 60 to 70 percent of people experience them. Many individuals may be visited by nightly hypnic jerks without even knowing it, as the twitches often go unremembered, particularly if

 why does the us give aid to israel

why does the us give aid to israel

he American Israel Public Affairs Committee, the largest pro-Israel lobbying group, praised Mr Obama for completing the deal and said it would send a strong message of deterrence to Israel's enemies. With these funds, Israel will be able to modernise and better equip its armed forces, the group said in a statement. Yet the agreement triggered pushback from pro-Palestinian groups, who said the USPshouldn't reward Israel with unprecedented aid despite its settlement-building in the disputed West Bank. The Palestinians have demanded that construction stop before restarting peace talks, and the USPconsiders the settlements illegitimate. Last week, the USPwas incensed by a video Mr Netanyahu released in which he equated criticism of settlement-building to support for ethnic cleansing. Mr

 why do white girls love black guys

why do white girls love black guys

People say the darndest things sometimes, and when it comes to interracial dating, it seems they just can't help themselves. Last week, we wrote on the and the reaction was incredible. While some people seemed to appreciate us tackling a topic that affects so many, others were quick to dismiss it as racist and unnecessary. Our political history fuels the scrutiny of interracial relationships. After all, South Africa is the home of apartheid, the, which corralled different racial groups into different geographical areas, and, which made it illegal for black and white people to marry or have sex. And just because we're doesn't mean people's minds have changed. We asked white women to share their experiences too and it turned out to be uglier than we could imagine. 1. "Aren't you able to

 why do vitamins give me a headache

why do vitamins give me a headache

Vitamins can benefit your health greatly, especially when included as part of a daily diet. Some people may experience symptoms, such as headaches, by consuming too much of any one vitamin. When taken in high dosages, vitamins become toxic. Vitamin supplements are also not regulated by the FDA in the same manner as regular processed foods. Vitamin supplements can be put on the market without testing the efficiency of the product. Therefore, take supplements with caution and consult your doctor and nutritionist before making diet and exercise regiment changes. Headaches vary in severity. Most headaches can be treated by altering lifestyle after identifying the trigger of the onset of a headache. Headaches may be triggered by consuming foods such as cheese or chocolate. Depression and

 why does my hair stink after i wash it

why does my hair stink after i wash it

Smelly hair, as the name suggests, is characterized by an unpleasant odor emanating from the hair and scalp. It can be caused by a condition called smelly hair syndrome. It can haunt people of any age and is not related to poor hygiene. Oily hair is more prone to this condition because it picks up environmental pollutants and strong smells more readily. Also, factors like stress and hormonal imbalance can contribute to this embarrassing problem. Scalp psoriasis and infections, particularly fungal infections, are also causes. Here are the top 10 home remedies for smelly hair. 1. Baking Soda Baking soda is one of the most widely used home remedies for smelly hair because it helps neutralize foul odors and reduces oiliness. Mix one part baking soda in three parts water. Rinse your hair with

 why do you bleed after a pap smear

why do you bleed after a pap smear

Should I worry if I bleed a little bit after my? Also, what happens if blood is found in the results? There are really two parts to your question, one regarding bleeding as a result of the Pap smear process, and the other regarding the analysis of pap smears that have blood in them. Bleeding is extremely common after Pap smears, due to the tiny brush scraping the delicate lining of the cervix. This type of bleeding does not result in any damage and will stop on its own. However, if the bleeding is directly related to the Pap smear, the expected bleeding should be light, mostly experienced as spotting, and should quickly resolve. If it does not, it requires further evaluation. ...

 why do you want to become a police officer uk

why do you want to become a police officer uk

A new police officer gets grilled with a series of exams, the toughest one of all being the interview. A face-to-face interview for the Police Academy is very different than any of those you might have faced before. It is a daunting experience, for you have to answer all sorts of. After reading this article, you may be interested in reading the article,бБ. How does one answer the question, Б Why do you want to become a police officer? You have the required commitment. You know how to deal with different types of people. You are socially competent. You are patient and tolerant. You perform well in stressful conditions. You have effective listening skills. You like working in a team environment. You have some qualities of leadership. You know how to initiate new ideas and to motivate

 why do water bugs die on their back

why do water bugs die on their back

Dead or dying insects assume a familiar pose: lying on their back, legs sticking up in the air. This tell-tale position is actually a symptom of an ailing bug's decreased coordination and failing nervous system. Normally, if a bug is knocked onto its back, it can use its legs to rock on its sides until it rights itself. If, however, can't roll back onto its abdomen because it has become too weak or because its nervous system isn't functioning properly, it remains stuck on its back. Because the bug can't get nutrients or protect itself from predators or when it's immobilized in this position, it soon dies if it can't flip back over. Several things can hinder an insect's ability to resituate itself. Ingesting pesticides and disrupts the bug's neurotransmitters and shuts down its nervous