Marie Curie studied the radiation of all compounds containing the known radioactive elements, including uranium and thorium, which she later discovered was also radioactive. She also found out that:
- you can exactly measure the strength of the radiation from uranium;
- the intensity of the radiation is proportional to the amount of uranium or thorium in the compound - no matter what compound it is;
- the ability to emit radiation does not depend on the arrangement of the atoms in a molecule; it must be linked to the interior of the atom itself - a revolutionary discovery!
When she realized that some uranium and/or thorium compounds had stronger radiation than uranium, she made the following hypothesis: there must be an unknown element in the compound which had a stronger radiation than uranium or thorium. Her work aroused the interest of her husband, Pierre Curie, who stopped his own research on crystals and joined the "detective work" with his wife. And Marie was proven right: in 1898 the Curies discovered two new radioactive elements: radium (named after the Latin word for ray) and polonium (named after Marie's home country, Poland).
Answer:
Throckmorton was planning to overthrow the throne
Explanation:
The papers contained details of the planned French invasion. Under torture, Throckmorton confessed to his role in a plot to overthrow Elizabeth and replace her with Mary Queen of Scots. He claimed that the plot was not well advanced, mainly because Philip II had not yet provided the finance for the proposed invasion.
Abraham Oretelius aka. Abraham Wortels is a cartographer born in April 14, 1527 in Belgium. He is also a dealer in maps, books, and antiquities who has published the first modern atlas known as the "Theatre of the World".
South east Asia and the Pacific I hope that’s correct
Restrictions on colonial trade
Explanation:
- Tensions between the British government and the colonies were further intensified by Britain's policy of mercantilism - economic and trade absolutism by reducing imports and developing domestic production.
- In addition, King George III (ruled from 1760 to 1820) imposed new taxes on the colonies to pay off debts incurred during the French and Native American War. The American colonists, accustomed to self-rule, fled because of the tyranny of the London government.
- The first tax that angered the colonists was the Stamp Act of 1765, which taxed all printed matter (legal documents and newspapers). A stamp on a document printed in London indicated that the tax had been paid
- . The response of the colonists, the strongest in the Boston area, was forceful and spread throughout the colonies.
- Taxes are oiled with tar and sprinkled with feathers. The British Parliament withdrew that law in 1766, but tried several other ways to collect taxes from the colonists and sent new British soldiers to America to maintain order.
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