How do I know if my glasses are plastic or glass? All you need to do is tap a lens against your teeth, a tool that’s always available. If the lenses make a soft ringing sound, they are more likely to be glass. If they make a soft *thunk*, then they are definitely plastic. Do […]
Did Japan surrender because of the bomb?
Did Japan surrender because of the bomb? Nuclear weapons shocked Japan into surrendering at the end of World War II—except they didn’t. Japan surrendered because the Soviet Union entered the war. Japanese leaders said the bomb forced them to surrender because it was less embarrassing to say they had been defeated by a miracle weapon. […]
What makes the taiga unique?
What makes the taiga unique? The taiga has several characteristics that distinguish it from the other forest biomes: Evergreen trees – This forest is covered with evergreen, or coniferous, trees. These are trees that don’t drop their leaves, or needles, in the winter. Cold weather – The taiga has the coldest weather of the forest […]
How did Einstein view death?
How did Einstein view death? Albert Einstein’s religious views have been widely studied and often misunderstood. Albert Einstein stated that he believed in the pantheistic God of Baruch Spinoza. Einstein also stated he did not believe in life after death, adding “one life is enough for me.” What was the last thing Einstein said? He […]
Why are the mirror fitted on the outside of cars convex?
How many whooping cranes are left today?
How many whooping cranes are left today? We appreciate your contribution to the recovery of the Whooping Crane Eastern Migratory Population. This report is produced by the International Crane Foundation. The current estimated population size is 80 (39 F, 38 M, 3 U). Seventeen of these 80 individuals are wild-hatched and the rest are captive-reared. […]
Is all light polarized?
Is all light polarized? Most light sources emit unpolarized light, but there are several ways light can be polarized. One way to polarize light is by reflection. Light reflecting off a surface will tend to be polarized, with the direction of polarization (the way the electric field vectors point) being parallel to the plane of […]
What is NADH and its function?
What is NADH and its function? NADH stands for “nicotinamide adenine dinucleotide (NAD) + hydrogen (H).” This chemical occurs naturally in the body and plays a role in the chemical process that generates energy. NADH is used for improving mental clarity, alertness, concentration, and memory; as well as for treating Alzheimer’s disease and dementia. What […]
Is humidity affected by temperature?
Is humidity affected by temperature? Home humidity has a number of effects on temperature, indoor air quality, health and the structural elements of your house. Temperature affects how much moisture can exist as humidity in the air, but humidity also has an effect on temperature. Humid air holds heat more efficiently than dry air. Does […]
Why does an apple look green?
Why does an apple look green? Green apples appear green because of chlorophyll in the peel. In red apples, the colour of chlorophyll is masked by the presence of anthocyanins, which are red in colour. Interestingly, anthocyanins accumulate in vacuoles, while the chlorophylls are present in chloroplasts of apple peel cells. Why is the color […]