Annihilation of Matter & Antimatter Annihilation When a particle meets its antiparticle partner, the two will?annihilate Annihilation is: When a particle meets its equivalent anti–particle they...
High Energy Particle Collisions The Diameter of a Nucleon High energy electron beams can be used to analyse?nucleons, e.g. Protons Neutrons When electrons are accelerated to very high energies, the...
在留學圈，通過學術活動提升孩子的競爭力已經是一個公開的“秘密”了。有意留學的家長及學生請注意！你們的機會來了，世界范圍廣受認可的AMC 8報名通道已經開啟！ 什么是美國數學學術活動AMC？ 美國數學學術活動AMC...
immc數學建模2023報名即將開始！是一項面向全球中學生的國際性新型數學建模學術活動。參賽成績是申請美國、香港、新加坡名校的加分參考依據；有機會獲得國內大學自主招生加分。所以你準備好了嗎？最后時間，大家...
NEC全美經濟挑戰賽火熱報名中，nec報名截止日期還有一個月，沒有報名的抓緊時間了，早報名早進入備賽的氛圍中。作為為數不多的經濟商科方向可選高中國際學術活動，NEC是千萬不能錯過的高價值學術活動！ 報名時間2...
Interpreting Particle Tracks Particle detectors that count particles, like Geiger-Muller tubes, are useful but they cannot distinguish different types of particle Modern detectors can show the?path...
Radius of a Charged Particle in a Magnetic Field A charged particle in uniform?magnetic field?which is perpendicular to its direction of motion travels in a?circular?path This is because the?magnet...
對于2023年的AP考試，讓很多考生糾結。首先大陸AP考試報名已經于9月19日開始，但是僅限AP學校的考生報名，還有大量的社會考生無法參與報名，同時，大陸考場也有部分科目（比如歷史類）不能考，這兩類學生都比較期...
Particle Accelerators & Detectors Linear Accelerators A linear accelerator (LINAC) is a type of particle accelerator that accelerates ions (charged particles) to very high speeds in?straight li...
Thermionic Emission When metals are?heated, the conduction electrons within them gain?energy If these electrons gain sufficient energy, they are able to leave the surface of the metal This is known...
Alpha Particle Scattering Evidence for the structure of the atom was discovered by Ernest Rutherford in the beginning of the 20th century from the study of?alpha?particle scattering This structure ...
Nucleon & Proton Number Atomic symbols are written in a specific notation as shown below: Atomic symbols show the proton number and nucleon number The top number A represents the?nucleon...
