How do hippos prevent sunburn? Hippos can stand in the hot sun all day without getting a sunburn, and now researchers know why: a red-colored glandular secretion known as “hippo sweat” contains microscopic structures that scatter light, protecting the hefty mammals from burns. The sweat was transferred to sealed plastic containers. In which ways skin […]
How long is an attack lacrosse stick?
Who was set up in Geneva Switzerland?
Who was set up in Geneva Switzerland? The History of Geneva dates from before the Roman occupation in the second century BC. Now the principal French-speaking city of Switzerland, Geneva was an independent city state from the Middle Ages until the end of the 18th century. John Calvin was the Protestant leader of the city […]
Is making gunpowder dangerous?
Is making gunpowder dangerous? Gunpowder was invented by Chinese alchemists in the 9th century. When the ingredients were carefully ground together, the end result was a powder that was called “serpentine.” The ingredients tended to require remixing prior to use, so making gunpowder was very dangerous. What causes gunpowder to explode? What makes gunpowder seem […]
What bacteria can grow on Cetrimide Agar?
What bacteria can grow on Cetrimide Agar? Cetrimide agar is a type of agar used for the selective isolation of the gram-negative bacterium, Pseudomonas aeruginosa. As the name suggests, it contains cetrimide, which is the selective agent against alternate microbial flora. What do you conclude from the absence of growth on Cetrimide Agar? Lack of […]
Can a tooth abscess cause cold symptoms?
Can a tooth abscess cause cold symptoms? Signs and symptoms of a tooth abscess include: Severe, persistent, throbbing toothache that can radiate to the jawbone, neck or ear. Sensitivity to hot and cold temperatures. How does tooth abscess affect the body? Having an untreated tooth infection can actually increase your risk for heart disease by […]
What currency was introduced in 1999 and is the official currency of 19 EU nations?
What currency was introduced in 1999 and is the official currency of 19 EU nations? The euro What was the value of the euro in 1999? €100.00 What were the economic and political reasons behind the creation of the euro in 1999? On January 1, 1999, the European Union introduced its new currency, the euro. […]
How many people will 1 pound of crab legs feed?
Why do uphill hikers have right of way?
Why do uphill hikers have right of way? It seems that many hikers—even experienced ones—may not know or always remember this, but hikers going uphill have the right of way. This is because in general hikers heading up an incline have a smaller field of vision and may also be in that “hiking rhythm” zone […]
Who is the world best person?
Who is the world best person? Top 100 List Muhammad (570 – 632 AD) Prophet of Islam. Isaac Newton (1642 – 1727) – British mathematician and scientist. Jesus of Nazareth (c. Buddha (c 563 – 483 BC) Spiritual Teacher and founder of Buddhism. Confucius (551 – 479 BC) – Chinese philosopher. St. Ts’ai Lun (AD […]