Using NASA Chandra X-ray astronomyUsing data collected by the Observatory in February of last year, the team discovered a powerful black hole inside Tol 0440-381 and found many similarities to the early stars that drove the era of reionization. According to Phil Carrett, professor and chair of the Department of Physics and Astronomy at the University of Iowa, this means that the black hole could be important for the escape of ultraviolet radiation from the reionizing galactic medium.
Until now we thought that the reionization of the universe (that is, the final stage in which the universe becomes transparent in visible light) occurred 500 million years after the Big Bang, but this extra 100 million yearsIt was redetermined by observations from the Planck satellite. But that doesn't mean the oldest stars in the universe formed 100 million years later than previously thought.
1, pronunciation: English [flt (r)] US [fltr] Usage: plural filters past tense filtered past participles filtered present participles filtering Third person singular filters filterFilter, from felt, felt. Used to filter dirt.
2, filter phonetic script: English [filt] United States [flt]; Past tense: filtered Past participle: filtered present participle: filtering Plural: filters.
3, network interpretation filter Chinese pronunciation lǜ qi; A device used for filtering, which must be an apparatus for filtering liquids or gases.
4, the phrase filter explicit results, not to mention only filter a word (no preposition after) in an English sentence is ambiguous, whether it is "out" or "out" depends on the context and context.
5, the first: non-Aoer (non-Ao need to be read together) the second: Sifo a erer (Buddha and erer should be connected to synthesize a sound). These two words with homophony is not good expression, it is recommended that you download an APP, that is, mobile phone application, such as cocoa English, English fluency can look up words.
6, Filter technology is servlet3 Added functions. servlet3 was released by sun in October 2000, and its developers include many individuals and groups of companies, which fully embodies the principles of code openness advocated by sun. With the joint efforts of many participants, servlet3 is much more powerful than before, and the performance has been greatly improved.
1, another neutral wireless charging , computer radiation is easy to damage the skin neutral wireless charging , affecting beauty. Long-term use of computer will damage the skin neutral wireless , easy to produce facial color spots neutral wireless , skin around the eyes appear slack, crow's feet, bags and dark circles and adult acne. There was neutral wireless charging macula,Pigmentation, severe cases can even cause skin lesions. Studies have shown that the back and side of the monitor are areas of strong radiation, so the direction should be adjusted to avoid sitting on the side and back of the computer screen. 2, domestic and foreign medical experts have shown that long-term, excessive electromagnetic radiation will cause direct damage to the human reproductive system, nervous system and immune system, is the main inducement of cardiovascular diseases, diabetes, cancer mutations and causes pregnancy abortion, infertility, teratosis and other diseases of the inducement factors, and can directly affect the development of minors' body tissues and bones. Causes vision, memory loss and liver hematopoietic functionIt is necessary to advance more than ten yards on four plays, otherwise the opposing team will change the attack, but if the total advance yards on any one play are more than ten yards, you can get a second first gear, which is a new round (four plays).
The rules of the rugby game are as follows: When passing the football game, no forward pass is allowed, only a return pass or a cross pass can be passed. An offside penalty is awarded if an attacking player passes the ball holder, and a free kick is taken by the opposing player at the offside spot. The commonly used passing method is to pass the ball low with both hands. When the ball holder is attacked or held by the other side, the ball must be thrown immediatelyHands, no more passes to teammates. The ball that has been relinquished by the ball holder may be contested by both players.
Players can score points by the way of touchdown and field goal. Of course, before the touchdown and field goal, there will be a series of passes between the players, and the pass can only be a back pass or a cross pass, not a forward pass. The opponent of the defending team will try to stop the attacking team from advancing or scoring a goal. The duration of the game is 14 minutes, the first and second halves are 7 minutes each, and the intermission is 2 minutes.
The game is divided into two halves, each half is 40 minutes, the interval is 10 minutes. Scoring rule: BallThe attacking team scores by placing the ball on the ground by passing a rugby ball into the opponent's goal area. The attacking team can also score by kicking the ball into the opponent's goal.
The rules of football include going forward and passing the ball. Forward: The goal of the team is to move the ball in the direction of the opponent's goal, gaining an attacking advantage by pushing and running. In the game, the team needs to carry the player's pass or carry the player himself to achieve progress. The distance to advance depends on the team's ability and tactics, and the opposing team will try to stop the other team's advance.
Rules of the game of rugby: Rugby (English)In the official game, each team has 15 players, 8 forwards and 7 back forwards. The game is played on a flat rectangular field, which is composed of the playing area and the touchdown area. The playing area is 100 meters long and 70 meters wide, and the touchdown area behind the goal must be at least 5 meters long but not more than 22 meters long. The game time is 80 minutes, divided into two halves, the halftime break is 5 minutes.