Einstein was enthralled by light. Even as a teenager he pondered its properties. At 16, he imagined what it would be like to chase, catch up with ... and that its speed was determined by how ...

He is best known for his theory of relativity, including the famous equation E=mc^2, which states that energy (E) is equal to mass (m) times the speed ... on the "Baby Einstein" product line ...

"The state of mind which enables a man to do work of this kind ... is akin to that of the religious worshipper or the lover; the daily effort comes from no deliberate intention or program, but ...

An envelope. It indicates the ability to send an email. When Albert Einstein said that nothing travels faster than the speed of light, he didn't talk about objects that could already be traveling ...

No one can catch up with a light beam. But if the speed of light is identical for all observers, something else has to give: absolute time and space. Einstein concluded that the cosmos has no ...

“If he’s had a feed at 5am, for example, you might consider this his ‘breakfast’ milk, then when he wakes up for the day go straight on to solids. Increasing your baby’s daytime solids should ...

Dori Ricci, Master Trainer To pick your baby up off a bed or out of a crib, your first impulse would be to bend over and pick the baby up. The better way to do it would be to get as close to the ...

While lying there, my son would carefully study each baby’s expression, eventually picking up several signs (with ... STEM building toys—were more her speed. The blocks are made of soft ...

Elephants are pregnant for up to two years. Females of some fish species starve for weeks while holding dozens of eggs and ...

Since 1922, Princeton University Press has been honored to publish the work of Albert Einstein (1879‑1955). That year, the Press published Einstein’s The Meaning of Relativity, becoming the first US ...

Einstein started wondering about this when he was just 16 years old. If you could somehow catch up to the light and travel ... the universe at nearly the speed of light. Since, according to ...

They keep your baby comfortable, they make diaper changes easier and they hold up to many, many, many cycles through the washing machine and dryer. When one kid outgrows them, they can be passed ...