Definetaly primary sources because primary sources are evidence from people who were actually there.
Primary sources are as fallible as secondary sources. You need both types of sources.
Primary-they/it were actually there
Usually you will need 'the broad picture' and a primary source won't give you that.Making sense of primary sources is often extremely difficult without expert knowledge of the subject.Primary sources are easily misunderstood.
centromere is the primary constriction and constriction other than primary constriction is called secondary constriction. it is useful in the recognition of a chromosome from the set.
Answer if this question concerns literature, not electricity.Primary Source: This is your main source, a source that was recorded when the event happened. Secondary Source: A source based on other sources e.g. a book about the event or a biography written by person A about person B.(An autobiography is an example of a primary source because someone wrote it about his or her own life. )Answer if this question concerns electricity, not literature.Primary Source: A non-rechargeable chemical battery which can produce a useful output current when a load is applied to it. It does not store electric charge and it cannot be re-charged when its supply of electric current has been used up. Secondary Source: A rechargeable chemical battery which can produce a useful output current when a load is applied to it. It stores electric charge and can be re-charged when its supply of electric current has been used up.
Primary! primary evidence is evidence from that particular time (e.g. a skeleton from the stone age), whereas secondary is something not from that time, but something that is about that time (e.g. a drawing of a skeleton from the stone age)
pictures are useful to historians because it helps them picture what it was like in the past
Bias can be useful to historians by allowing them to learn about people's opinions and beliefs.
Answer if this question concerns literature, not electricity:Primary Source: This is your main source, a source that was recorded when the event happened.(An autobiography is an example of a primary source because someone wrote it about his or her own life.)Secondary Source: A source based on other sources e.g. a book about the event or a biography written by person A about person B.Secondary sources also include newspapers, encyclopedias, textbooks, biographies, and magazines.Answer if this question concerns electricity, not literature:Primary Source: A non-rechargeable chemical battery which can produce a useful output current when a load is applied to it. Such batteries are not designed to accept and store electric charge from a battery charger and no attempts should be made to re-charge them when their supplies of electric current have been used up.Secondary Source: A rechargeable chemical battery which can produce a useful output current when a load is applied to it. Such batteries are designed to accept and store electric charge from a battery chargerand can be re-charged whenever their supplies of electric current have been used up.
The secondary suture line is useful to reinforce and support the primary suture line, eliminate dead space, and prevent fliud accumulation.
A primary industry is based on the extraction of natural resources while a secondary industry turns semi-finished products (the output of primary industries) into useful consumer goods. for example: a primary industry is a farmer, miner, or even a fisherman, but a secondary (also called manufactoring is ashop assistant, boat builder o a butcher.
For a historian performing research or simply reading a book about history, the most valuable sources are primary ones. These may be eye-witness accounts, or letters written about a topic the writer has first hand knowledge of. In the US Civil War, for example, the Confederate Constitution would be a primary source. In comparison, a secondary source would be, and once again using the US Civil War as an example, if for some reason a former Confederate general had joined the British army after the war, and the source of this information was that in a newspaper editorial of the time, and the editorial criticized such an action and the source was , "we have learned that a former Confederate general, name unknown, has joined the British army", That editorial would be secondary and not of great value.The primary source has more validity and is more useful for the historian.Problems can develop for the historian when primary sources conflict with each other.
Cobra is available to those without insurance. Fortunately you have primary insurance and this would be useful.
the historians use graphs to something that happened over . unicorns are fluffy.
Why is static electricity not useful as a power source
Different types of letters rely on different types of historians and therefore gives very useful historical information. They give various types of information based on different historians.
The real transcripts of speeches found in scrolls or olden newspapers are great finds for historians. They become primary sources of information, and generally speaking are most useful in understanding past human history.
If historians weren't biased there'd be no heated controversy to fuel book sales, and they'd die out.
The most useful way to separate legend from fact is to examine the source, and to see if you can find other credible sources to back it up
JC Whitney is a primary source for these parts. Roverland parts is another good source as is Auto Parts Warehouse. eBay can be useful for finding them as well.
it is a star to star connected transformer. It having two neutrals. One is at Primary side and another is at secondary side to balance the loads. Y= Primary star connection N=Primary Neutral y=secondary star connection n=secondary neutral and 0=No phase shift between primary and secondary. So,finally this meaning is star to star connected with two neutrals and zero phase displacement. Please refer below i detailed some notations to calculate any other vector groups D= Primary Delta connection d=Secondary Delta connection a=Auto transformer Z=Zig zig connection 11=30 degrees phase shift b/w primary & secondary 1= 30 degrees phase shift b/w primary & secondary 1) Consider capital letters for Primary notations 2) Consider small letters for secondary notations 3) Consider Clock reference at 12.00 for calculation of degrees I think this procedure is very useful to calculate for other vector groups.
When the volcano erupted it left a thick layer of ash over it. It is useful to historians because the ash preserved everything. Everything they wore and did, architecture and everything can be seen when you look at Pompeii.
The Bayeux Tapestry is a useful primary resource because it was made by people who were around at the time, which is what makes it primary. It is useful because it is one of few pieces of evidence used to represent what happened.
Aldosterone measurement is useful in detecting a condition called aldosteronism, which is caused by excess secretion of the hormone from the adrenal glands. There are two types of aldosteronism: primary and secondary.
Primary occupations are those occupations which depend directly on nature. For example: agriculture, fishing, lumbering, mining, gathering forest products and so on. Occupations in which production of finished useful commodities by processing raw materials obtained from nature is involved are called secondary occupations. For example: various types of industries.
Census records are among the most useful source of data for family historians. Census records can provide genealogical missing link to tie together a group of family members in a way not possible with any other single data source.
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