What is bee
Bees are flying insects closely related to wasps and ants, and are known for their role in pollination and for producing honey and beeswax. Bees are a monophyletic lineage within the superfamily Apoidea, presently classified by the unranked taxon name Anthophila. There are nearly 20,000 known species of bees in seven to nine recognized families,[1] though many are undescribed and the actual number is probably higher. They are found on every continent except Antarctica, in every habitat on the planet that contains insect-pollinated flowering plants.
Bees are adapted for feeding on nectar and pollen, the former primarily as an energy source and the latter primarily for protein and other nutrients. Most pollen is used as food for larvae.
Bees have a long proboscis (a complex "tongue") that enables them to obtain the nectar from flowers. They have antennae almost universally made up of 13 segments in males and 12 in females, as is typical for the superfamily. Bees all have two pairs of wings, the hind pair being the smaller of the two; in a very few species, one sex or caste has relatively short wings that make flight difficult or impossible, but none are wingless.
The smallest bee is Trigona minima, a stingless bee whose workers are about 2.1 mm (5/64") long. The largest bee in the world is Megachile pluto, a leafcutter bee whose females can attain a length of 39 mm (1.5"). Members of the family Halictidae, or sweat bees, are the most common type of bee in the Northern Hemisphere, though they are small and often mistaken for wasps or flies.
The best-known bee species is the European honey bee, which, as its name suggests, produces honey, as do a few other types of bee. Human management of this species is known as beekeeping or apiculture.
Bees are the favorite meal of Merops apiaster, the bee-eater bird. Other common predators are kingbirds, mockingbirds, beewolves, and dragonflies.
How bees work
In the creation story of the Kalahari Desert's San people, a bee carries a mantis across a river. The river is wide, and the exhausted bee eventually leaves the mantis on a floating flower. The bee plants a seed in the mantis's body before dying, and the seed grows into the first human.
The San are not the only people to include bees in their myths and stories. According to Egyptian mythology, bees were created when the tears of the sun god Ra landed on the desert sand. The Hindu love god Kamadeva carries a bow with a string made of honeybees. Bees and their hives appear in religious imagery and royal regalia in multiple cultures, and people around the world use honey and pollen in folk medicine and religious observances.
The idea that there is something divine or mystical about bees isn't confined to religion and mythology. Until the 17th century, many people, including beekeepers, thought that bees reproduced spontaneously, without the aid of sexual reproduction. But in the 1660s, Jam Swammerdam examined a queen bee through a microscope and discovered female sex organs. Around the same time, Francesco Redi proved that maggots formed in meat only when flies had landed there. It became clear that bees and other insects reproduced by laying eggs, not by magic.
Even though they do not reproduce through autogenesis, or spontaneous generation, bees do exhibit many other traits found in stories and myths -- traits that have led many cultures to view them with reverence or awe. This is particularly true of social bees, or the species that live in colonies. Social bees are organized, industrious and intelligent. They work diligently all summer in order to produce enough food to survive the winter. Social bees are clean and fastidious, and they arrange their lives around one central member of the hive -- the queen.
But most bees aren't social. They don't live in hives or work together to support a queen. In this article, we'll look at how social bees are different from solitary bees. We'll also explore how bees make honey and examine the potential causes and effects of Colony Collapse Disorder.
Ansel's Diary
Monday, November 11, 2013
how to choose power bank brand
Lead: before discussing this question, we often have to reflect on how our dedication for Power Bank brand. Typically you can choose and nothing more than common UNOs power bank etc., coupled with the recent new out so many mobile power charger pack, and you will choose brands dizzy; like doing UNOs Powerbank earlier outside the single, are part of the industry's top brands. So here, what makes a good Power Bank, we need to turn directions, from an objective aspect to look at Power Bank which brand is good.
Power Bank option
Choose safe and reliable brand of Power Bank I believe we have a certain understanding of the importance, for portable work, live, play necessary tools make digital devices work; Not just to be safe, also to the capacity requirements of the emergency extent, can be make power bank work.
Rechargeable Power Bank is a tool, not a decoration, it has begun to slowly out of the scope of mobile phone accessories, mobile power not only from the phone, but also can be used to charge a variety of digital devices.
As a consumer, you want to select a real high quality and reliable mobile power products, but also pay attention to fake.
1 , product certification, such as national CCC certification is mandatory certificates, this is very important . The second is the CE, as well as the EU's electronic product safety test certificate ROHS ( the amount of toxic electronic products and other professional safety certification )
2 , aftermarket products , mobile power generally a whole must change bad , it just moves the internal structure of a power supply circuit board pmc , a few slices of the battery has been no other . So first ask the mobile power warranty and after-sales policy .
3 , lithium polymer and lithium ion selection , these two are more common than the former lithium polymer lithium-ion technology , the capacity and safety of lithium-ion safer than some of the cottage manufacturers of lithium- ion lithium battery is comparatively more dangerous especially easy to fire initiation .
4 , product availability , how much power connector outlet , how many functions are those functions , are worth a visit. Usually feature more mobile power will be more unstable , the problems will not charge prone . So I do not recommend too many features , but I suggest you think what kind of accessories can save a few months you can also buy Reference: mobile power electric charge does not go how to do ?
5, the last is the most important. What makes a good mobile power , but also ask yourself this question , "What situation I need the Power Bank work for" , " How much capacity is suitable for mobile phone"
Power Bank Prices
In fact, even over such a period of time, the shoddy Power Bank supply so many, such as Power Bank equipment a lot of sand in.
The second is the price, the price is too low, such as a 10,000mAh, 20,000mAh mobile power for less than $60(Yuan, RMB,CNY), there's a problem.kind of a hundred Yuan(Yuan, RMB,CNY) on a 30,000mAh, 40000mAh, 50000mAh, that is false Power Bank. Power Bank over 20,000mAh basically not mobile/portable, this is not entirely Power Bank. So, You can average prices of the same Power Bank's capacity, pick a reasonable price. Do not trust the low prices.
The End
Power Bank option
Choose safe and reliable brand of Power Bank I believe we have a certain understanding of the importance, for portable work, live, play necessary tools make digital devices work; Not just to be safe, also to the capacity requirements of the emergency extent, can be make power bank work.
Rechargeable Power Bank is a tool, not a decoration, it has begun to slowly out of the scope of mobile phone accessories, mobile power not only from the phone, but also can be used to charge a variety of digital devices.
As a consumer, you want to select a real high quality and reliable mobile power products, but also pay attention to fake.
1 , product certification, such as national CCC certification is mandatory certificates, this is very important . The second is the CE, as well as the EU's electronic product safety test certificate ROHS ( the amount of toxic electronic products and other professional safety certification )
2 , aftermarket products , mobile power generally a whole must change bad , it just moves the internal structure of a power supply circuit board pmc , a few slices of the battery has been no other . So first ask the mobile power warranty and after-sales policy .
3 , lithium polymer and lithium ion selection , these two are more common than the former lithium polymer lithium-ion technology , the capacity and safety of lithium-ion safer than some of the cottage manufacturers of lithium- ion lithium battery is comparatively more dangerous especially easy to fire initiation .
4 , product availability , how much power connector outlet , how many functions are those functions , are worth a visit. Usually feature more mobile power will be more unstable , the problems will not charge prone . So I do not recommend too many features , but I suggest you think what kind of accessories can save a few months you can also buy Reference: mobile power electric charge does not go how to do ?
5, the last is the most important. What makes a good mobile power , but also ask yourself this question , "What situation I need the Power Bank work for" , " How much capacity is suitable for mobile phone"
Power Bank Prices
In fact, even over such a period of time, the shoddy Power Bank supply so many, such as Power Bank equipment a lot of sand in.
The second is the price, the price is too low, such as a 10,000mAh, 20,000mAh mobile power for less than $60(Yuan, RMB,CNY), there's a problem.kind of a hundred Yuan(Yuan, RMB,CNY) on a 30,000mAh, 40000mAh, 50000mAh, that is false Power Bank. Power Bank over 20,000mAh basically not mobile/portable, this is not entirely Power Bank. So, You can average prices of the same Power Bank's capacity, pick a reasonable price. Do not trust the low prices.
The End
Saturday, November 9, 2013
HOW TO choose a power supply for iphone
EDITOR: power supply choose is useful for your use digital device. worry-free the electric capacity empty.
In China, here has so many power bank in the market, even the power bank brand there are thousands, how to pick up a right power supply? not all of them are worthy for consideration.
Here is the question for your real consideration, and help you can find your best power bank.
1.Know about your requirements
is it used for travel? is it use use for usual day? or used for bussiness travel?
there are so many options, so think about what is much use.
Figure the situation to yourself, ask yourself,
"how many battery capacity I need"
"how many times It can be charged"
"how much I can accept"
2.Battery type
There are two main battery type: Lithium lon and Lithium Polymer
li-ion(lithium lon,18650 lithium battery) which means length is 65mm and diameter of 18mm is cylindrcal in shape is older generation but still popular due to lower price.
Lithium Polymer is the new advanced battery, made of aluminium plastic casing and has lighter weight, better performance and safety features, its thickness is thin than 18650 battery and has more capacity in same size.
So, I suggest to choose lithium polymer.
3.Power Bank Capacity
1)your current mobile battery capacity is very important. factor to consider power bank you require.
Understand your mobile phone battery capacity, that can decide on the best power bank capacity.
Digital device battery capacity:
ipad 4, 10000,mAH;
iPhone 5, 1450mAh;
galaxy S3, 2100mAh;
galaxy S4, 2600mAh;
galaxy note, 2500mAh;
2)Power Bank Supply Capacity
In the market, those powerbank always has a regular capacity.
800mAh power bank;
1200mAh power bank;
2200mAh power bank;
2600mAh power bank;
4000mAh power bank;
5000mAh power bank;
5200mAh power bank;
6200mAh power bank;
7800mAh power bank;
8000mAh power bank;
10400mAh power bank;
13000mAh power bank;
20000mAh power bank;
Power bank another name is portable power pack, "portable" is option.
The power bank to factor the leakage and voltage conversion, so one can safely assume that the actual available power would be 20-30% of the mentioned mAh. the 10000mAh power bank maybe could hava a usable capacity of 8000mAh.
4.Certifications
With lot of fake power banks flooding the market, actuality, as a chinese,I have many experiences of shopping in china, So,I need says, Certifications is very important to choose a credible option.
out of china, CE,FCC,Rohs certifications(and truly certificate) should be a safe bet.
5.Funtion model
Such like led indicator,led light, and wirless etc..
Led indicator is base inside all of power bank.
Led light, and wirless is not essential, cause, that will be spend fast that capacity.
6.Power Bank Brand
There are many power bank brands( power bank supplier ) in the market, above the selection criteria may brand is not important, somtime you do't like to thinking, brand will be the good option, such as unos power bank, my charger battery pack, yoobao power bank,etc.
At the end, Can you choose your power bank supply?.
Original post: HOW TO CHOOSE A POWER SUPPLY
In China, here has so many power bank in the market, even the power bank brand there are thousands, how to pick up a right power supply? not all of them are worthy for consideration.
Here is the question for your real consideration, and help you can find your best power bank.
1.Know about your requirements
is it used for travel? is it use use for usual day? or used for bussiness travel?
there are so many options, so think about what is much use.
Figure the situation to yourself, ask yourself,
"how many battery capacity I need"
"how many times It can be charged"
"how much I can accept"
2.Battery type
There are two main battery type: Lithium lon and Lithium Polymer
li-ion(lithium lon,18650 lithium battery) which means length is 65mm and diameter of 18mm is cylindrcal in shape is older generation but still popular due to lower price.
Lithium Polymer is the new advanced battery, made of aluminium plastic casing and has lighter weight, better performance and safety features, its thickness is thin than 18650 battery and has more capacity in same size.
So, I suggest to choose lithium polymer.
3.Power Bank Capacity
1)your current mobile battery capacity is very important. factor to consider power bank you require.
Understand your mobile phone battery capacity, that can decide on the best power bank capacity.
Digital device battery capacity:
ipad 4, 10000,mAH;
iPhone 5, 1450mAh;
galaxy S3, 2100mAh;
galaxy S4, 2600mAh;
galaxy note, 2500mAh;
2)Power Bank Supply Capacity
In the market, those powerbank always has a regular capacity.
800mAh power bank;
1200mAh power bank;
2200mAh power bank;
2600mAh power bank;
4000mAh power bank;
5000mAh power bank;
5200mAh power bank;
6200mAh power bank;
7800mAh power bank;
8000mAh power bank;
10400mAh power bank;
13000mAh power bank;
20000mAh power bank;
Power bank another name is portable power pack, "portable" is option.
The power bank to factor the leakage and voltage conversion, so one can safely assume that the actual available power would be 20-30% of the mentioned mAh. the 10000mAh power bank maybe could hava a usable capacity of 8000mAh.
4.Certifications
With lot of fake power banks flooding the market, actuality, as a chinese,I have many experiences of shopping in china, So,I need says, Certifications is very important to choose a credible option.
out of china, CE,FCC,Rohs certifications(and truly certificate) should be a safe bet.
5.Funtion model
Such like led indicator,led light, and wirless etc..
Led indicator is base inside all of power bank.
Led light, and wirless is not essential, cause, that will be spend fast that capacity.
6.Power Bank Brand
There are many power bank brands( power bank supplier ) in the market, above the selection criteria may brand is not important, somtime you do't like to thinking, brand will be the good option, such as unos power bank, my charger battery pack, yoobao power bank,etc.
At the end, Can you choose your power bank supply?.
Original post: HOW TO CHOOSE A POWER SUPPLY
Thursday, November 7, 2013
start blog hello world!
hello world!
i am good to use blog on blogspot,that was fun.
and i need to be hard writing blog post.
i am good to use blog on blogspot,that was fun.
and i need to be hard writing blog post.
Labels:
hello world
Subscribe to:
Posts (Atom)